Can somebody tell me why people want next gen lenses but want smaller f/stops to go with it?
To clarify, my comments about a range of f1.4 replacements is more an opinion on Canon's recent trend, rather than what I'd like - realistically, Canon hasn't yet produced a lens with IS on an f-stop less than 2.0, I have read elsewhere that IS on fast lenses gets more difficult, so a f1.4 lens with IS looks unlikely.
Fast lenses come with compromises, this is why most people reserve use of the widest f-stops for special use rather than the norm, which is why IS on fast'ish lenses has become another compromise for many, making lenses like the 35mm f2.0 IS considerably better in low light situations, in particular where action doesn't need freezing, than previous faster f1.4 lenses.
I'd love to see a f0.95 50mm lens with IS, but the technology isn't there and the cost would make it a very specialist lens, unless fantasy land could make it for £99 - but that's not gonna happen ever. ;-)