According to CR
Update: Canon 650D Announced – See more details
Canon will announce its 650D / T4i on June 8 with two new lenses, a 40mm pancake lens and a new EF-S 18-135 IS lens, no news about mirrorless system,
650D Rumored Specifications
- 18mp (no word on whether or not its a new or modified 18mp sensor)
- 9 AF Points, all cross-type
- Touchscreen LCD
- Continuous AF in LiveView & Video Recording
based on leaked specification canon may use its old 18 Mp sensor on 650D with DIGIC V image processor, new sensor is expected to announced with 70D or 7D mark II at Sep 2012.
Canon 18 Mp APS-C CMOS sensor history – Canon 18 Mp sensor was first announced with 7D on Sep 1, 2009, after that canon used that sensor in 550D, 600D, 60D and 60Da.