My guesses for September, in order of likelyhood (this should all be pretty obvious by now):
- 60D
- 60mm f/2.8 IS macro
Sometime either in September or later in the fall:
- 24-70L f/2.8 IS
- 35L II
- 1DsIV
- 14-24L f/2.8
Wishful thinking:
- 135L IS
- 200L IS
- other fast primes or a prime-replacing f/2 zoom