I agree on the high end EF-S lenses. The most blatant omission at the moment is in the telephoto range. A competitor to Sigmas 50-150 HSM OS springs to mind, or a telephoto prime in the 200-500 range with the weight reduction advantage of EF-S. (not as probable though)
Releasing one such lens would also reinforce the marketing of 7D2 as a sports/wildlife camera...
There is a lack of long ef-s lenses... I would like to see some longer efs primes ( not zooms) but rather doubt I will see them as the masses prefer zoom lenses. Perhaps after some quality zooms come out, but certainly not before.
It may be about the right time or a "digic 6" to arrive... A 7D2 with digic6, new sensor technology, wifi, GPS, touchscreen AND decent button/dial controls would kick! And if were to include features from Magic Lantern it would annihilate the competition.
And, of course, the 70D.... Even if they gave it a better digic, added the gimmicks like wifi and GPS, kept the articulated screen, it would still be a nice camera.... But once again, learn from Magic Lantern and add in some decent features through software.... Set yourself apart from the rabble (rebel