While still slated a year away for an early 2020 release, first-time Bond director Cary Fukunaga has been in production on the 25th iteration of the James Bond film series with an all-star cast including Daniel Craig, Rami Malek and Ralph Fiennes.
Bond 25 on IMAX 70mm
However, as many Reddit users have pointed out, this might not mean that the entire film is being shot on 70mm, rather just certain expansive exteriors or specific sequences. Or, it’s always possible that the image came from the part of production from when Danny Boyle was at the helm before bowing out last August due to creative differences.
Whatever the case, Fukunaga (best known for Beast of No Nation, True Detective and Netflix’s Maniac) is well known for his penchant for shooting on film. It wouldn't be much of a surprise for him to shoot Bond 25 on film, but the possibility of it being shot entirely on IMAX 70mm would certainly be quite impressive for a Freshman Bond director.
For more reference, here’s a great BTS breakdown of one of the most famous long-take sequences from True Detective for more insights into Fukunaga's film-centric filmmaking experience.