jeffa4444 said:
Have we not been around this sandbox?
If it is full-frame and utilises EF lenses then your governed by the back focus which will set a certain size of camera and not make it massively smaller than say a 6D MKII (minus the pentaprism housing). The lenses will be no smaller so all that effort will be primarily for a small gain in camera body weight and possibly to the detriment of in hand balance.
A shorter back focus will require new lenses for full-frame for marginal savings in lens design to compliment the camera so what is the real point?
We may just see a mirrorless camera the size of a 6D MKII.
And therein lies the conundrum that is mirrorless, is the reason for its exiistance to save size and weight or is it because it does stuff better than a camera with a mirror?
Canon decided that with regards the M line of mirrorless size and weight were the critical issue so we have small, slow short registration distance lenses and smaller bodies with comparatively poor battery life. This feature set attracts a certain kind of buyer and is much more popular in emerging markets.
If they decide the reasoning behind a ff mirrorless is that it offers a feature set not possibly with a mirror, something particularly interesting to current shooters not so much forum trolls, then the size and weight is close to irrelevant. We have already seen the lenses that we want, 70-200 f2.8's, fast primes etc don't get smaller just because they are attached to mirrorless bodies, so the 20mm difference in body depth is of little consequence.
I cannot see Canon making anything but an EF native compatible ff mirrorless, nothing else makes business sense.