Canon is providing a 650D before a new 60D/7D for 2 reasons:
- Consumers are the biggest segment of market
- Canon 1100D cannot compete with Nikon D3200
Basically Canon can't let Nikon win that easily in this segment, so the rush for a new, competitive, product.
That said, I would not expect any major improvement over the 600D except for Digic5 and maybe a few MP (21 is my bet). It will be just enough to keep the competition alive. We could have the 19-points AF fromt the 7D, but only if Canon plans to use the new 5D3 AF's scheme (or something similar) in the upper segment APS-C cameras. It also depends on where in the price scale this camera will be placed. I bet slightly above the D3200, with the 600D sinking slightly below.