1080p 120fps will it ever be in a firmware

Jethro

EOS R
Jul 14, 2018
171
71
No - I think it is generally considered to be a physical limitation rather than a software fix.
 

padam

EOS 7D MK II
Aug 26, 2015
539
190
The sensor readout is too slow, for now, only the 1DXII sensor is capable of it besides the Cinema cameras.

And anyway, Canon firmly determines what you can get and at what prices. So don't expect getting features like this and without paying significantly more money for it, it will slowly show up in lesser cameras in later generations as technology evolves, but it will take several years (the cheapest camera where it may show up is a TOL crop sensor camera, like a 7DIII or something).