The biggest news is their new 8192 x 4320 sensor, which will actually be slightly wider than a standard full-frame 35mm sensor at 40.96mm x 21.6mm. This new 8K WEAPON will be an upgrade that is set to ship at the end of the year, but there will be significant discounts during the NAB show itself. It will cost $10,000 more than Carbon WEAPON during NAB, and $20,000 more after NAB. The final upgrade price will depend on which camera you are trading in, but there will be $5,000 and $10,000 deposits depending on which package you're looking at.

We now have the full details about what makes WEAPON what it is. As of right now, the big changes in the camera are ProRes recording internally simultaneously with R3D RAW files. These are scaled down to 2K from the full sensor. There will be multiple versions of the WEAPON camera, with Carbon Fiber having slightly higher ProRes specs over the Magnesium Body (up to 120fps for CF and 60fps for Magnesium). They've also eliminated black shading, added built-in wireless connectivity, apparently lower fan noise, and tethered ProRes streaming, where the ProRes is sent over Ethernet. 

The 8K cameras will supposedly be shipping by the end of 2015 and the 6K WEAPON cameras should ship sometime this summer (with upgrades taking place over a long period of time).

8K WEAPON — Full Frame / Vista Vision 

The new 8K sensor is 40.96mm x 21.6mm with a resolution of 8192 x 4320 and a max frame rate of 75fps at 8K. The other specs are unclear, but it seems like this 8K version should still have the same functionality as the other WEAPON cameras.

Here's what Jarred said about it:

NAB price for the upgrade is $10k additional to Weapon CF or Weapon CF upgrade during NAB only. Upgrade Price when 8K ships at end of the year will be $20k. 
If you order 8K now, you will receive 6K Weapon when 6K ships the beginning of July and be upgraded when 8K ships. 

Here is a limited edition forged Carbon Fiber version:

WEAPON 6K Carbon Fiber

$49,500 Brain + Media Bay + CF Sidekick + Magnesium PL mount

Trade-in Program

• If you own EPIC CF DRAGON before NAB, credit towards WEAPON CF is $22,500. If you own Epic CF After NAB starts, it is $20,000.
• If If you own EPIC-M DRAGON before NAB, credit towards WEAPON CF is $17,500. If you own Epic-M Dragon After NAB starts, it is $15,000.
• If you own EPIC-X DRAGON before NAB, credit towards WEAPON CF is $15,500. If you own Epic-X Dragon After NAB starts, it is $13,000.
• If you own SCARLET-X DRAGON before NAB, credit towards WEAPON is $5000. If you own Scarlet-X Dragon After NAB starts, it is $2500.

Record R3D RAW and Scaled ProRes At the Same Time

Records R3D and scaled version of same footage as ProRes. For example 6K master, and 2K ProRes up to 120fps.
Files recorded simultaneously to same media
Consistent naming and internally accurate timecode (easier workflow than external recorder)
Apple ProRes 444XQ, 444, 422HQ, 422 or 422LT
As well as tethered streaming ProRes - ProRes recorded proxy can be sent to Ethernet, while R3D master sent to media

The rest that's new with the camera:

• 33x33x33 3D LUTs
• Faster Data throughput. Up to 50% higher data rates to card. Existing RED MINI-MAG 512GB cards are already ready for transfer speed increase
• Dual monitor ports on Brain for EVF/LCDs. 
• Automatic sensor calibration. Select exposure times from 1/8000s to 1/8s without calibrating. Wider operating band for sensor temperature
• Better thermal management, Lower fan noise with no front fans and more stable operating temperature 
• Integrated top-plate
• Integrated wireless control connectivity
• Interchangeable and removable I/O options with accessible port placement.
• Interchangeable OLPFs with smart detection of which OLPF is installed.
• Monitor flip and mirror on all outputs, including SDI.
• Integrated dual digital front microphones

WEAPON DRAGON 6K Magnesium

$34,500 Brain + Media Bay

Trade-in Program:

• If you own EPIC CF DRAGON before NAB, credit towards WEAPON CF is $22,500. If you own Epic CF After NAB starts, price is $20,000.
• If you own EPIC-M DRAGON before NAB, credit towards WEAPON CF is $17,500. If you own Epic-M Dragon After NAB starts, price is $15,000.
• If you own EPIC-X DRAGON before NAB, credit towards WEAPON CF is $15,500. If you own Epic-X Dragon After NAB starts, price is $13,000.
• If you own SCARLET-X DRAGON before NAB, credit towards WEAPON is $5000. If you own Scarlet-X Dragon After NAB starts, price is $2500.

The rest of the specs:

• Simultaneous R3D and Pro-res recording in-camera
• Records R3D and scaled version of same footage as ProRes. For example 6K master, and 2K ProRes up to 60fps.
• Files recorded simultaneously to same media
• Consistent naming and internally accurate timecode (easier workflow than external recorder)
• Apple ProRes 4444XQ, 4444, 422HQ, 422 or 422LT
• Tethered streaming ProRes - ProRes recorded proxy can be sent to Ethernet, while R3D master sent to media
• 17x17x17 3D LUTs
• Faster Data throughput. Up to 50% higher data rates to card. Existing RED MINI-MAG 512GB cards are already ready for transfer speed increase
• Dual monitor ports on Brain for EVF/LCDs. 
• Automatic sensor calibration. Select exposure times from 1/8000s to 1/8s without calibrating. Wider operating band for sensor temperature
• Better thermal management, Lower fan noise with no front fans and more stable operating temperature 
• Integrated top-plate
• Integrated wireless control connectivity
• Interchangeable and removable I/O options with accessible port placement.
• Interchangeable OLPFs with smart detection of which OLPF is installed.
• Monitor flip and mirror on all outputs, including SDI.
• Integrated dual digital front microphones

They've introduced a new Magnesium PL mount as a separate option for $3,500

And here are all of the modules RED has shown off so far:

RED WEAPON 7" Touch LCD

$2950 - Attaches directly to Weapon monitor port on WEAPON brains ( cableless )

RED WEAPON Lemo A and B Adapter

$195 each - Mounts directly to WEAPON brain. In conjunction with WEAPON Lemo Adaptor B, will allow use of Lemo cables to mount W LCD/EVF to locations where not mounted directly to WEAPON brain. 

Use a single Lemo Adaptor A to connect existing 7" and 5" LCD or EVFs to WEAPON

REDVOLT XL Module

$1150 - REDVOLT XL slot, 12V DC IN, 2x 12V 3.8A Aux ports, also trickle charges attached batteries.

OFFHOLLYWOOD OMODZ 3rd Party Modules

RED has finally opened up modules to 3rd parties, and the first ones on the market are from Offhollywood. Here are the first three, the OMOD MINI, OMOD LT, and OMOD 4K PRO.

REDVOLT Expander for WEAPON

$3950 - 2 x 3-pin Full-Size XLR audio in, DC in, HDMI out, USB power out, HD-SDI out, Genlock in, Gigabit Ethernet, CTRL, 3.5mm headphone jack, Timecode , phantom power, 2x Aux power out. REDVOLT slot for power / hot-swap 

Jetpack for WEAPON

$950 - Includes DC in, CTRL, SYNC, HDMI out, USB power out. I/O module for handheld and other gimbal applications and includes adjustable HDMI port + USB power for wireless transmitter dongles and switchable for remote power on when power is detected. 

Base Expander for WEAPON

$1750 - Includes 3.5mm mic jack, headphone jack, HDMI out, HD-SDI out, CTRL, SYNC, DC in.

Source: RED WEAPON