Slightly different form factor than 50D.
No articulating screen
New AF System
Expect an announcement during the 3rd week of August
EF 60 f/2.8 IS Macro
This lens will be released at the same time. Notice it's not EF-S.
EF 24-70 f/2.8L IS
I'm told the testing phase of the lens is complete and manufacturing will start in the next 30 days.
Announcement in August.