Canon rumours have a 24mmf2.8 STM , a 24-100ish variable aperture zoom ( assume a cheap ff kit zoom) and ...
...a 400 DO mkII cough cough...
I imagine canon need a replacement 45tse soon, but many other lenses need reworking.
A good 50 for one, the 100-400mk2, 135f2.0 IS, 24mmf1.4L , the 35 could probably do with a refresh, and everyone expects an f2.8 ultrawide too.