Currently have the 50mm 1.4 and 135mm 2.0....

I'm looking at a wide prime and something longer, but the options aren't to my liking, the L wider primes are just too much, the 400mm 5.6 just doesn't feel right without IS

So my wish list would be a 400mm 4.0 IS (without DO), perhaps ideally an EF-S lightweight 400mm 4.0 IS, then a range of EF-S primes, 14mm 2.8, 24mm 2.0, 35mm 1.8....

Back to real primes, 24mm 1.4, 85mm 1.8 and a 300/400mm is on my wish list with a 1.4x extender,

Not a prime, but I'd love a crop version of the 70-200mm, so an EF-S 40-150mm both to a higher quality not quite L standard as the 10-22, 17-55 & 15-85.