I've frequently predicted an EF-S 35mm f/1.8. I believe it will lack USM and have build quality and styling similar to the EF-S 18-55mm II and EF-S 55-250mm II, to keep it appealing to the broad consumer market (which, based on sales figures wants lenses <$250). I know folks here would really like USM and probably faster than f/1.8, but I don't see that happening. A 'cheap' prime that's 'normal' on APS-C is what we're likely to see, perhaps introduced alongside the T4i/650D in 1Q12.