The Canon Rebel T3i replacement (presumably, the T4i) is rumored to launch in early 2012. Initial rumors point to the use of a 18MP APS-C sensor and DIGIC 5 processor, along with 9 cross-type AF points, full-time AF during video capture and a touchscreen LCD.
Additional Canon Rebel T4i Rumors
Canon Rebel T4i and New Lenses This Week?
Canon Rebel T4i/650D Rumored Specs
Canon Rebel T4i and Mirrorless Camera Next Month?
Canon Rebel T4i Coming in February?