Just to summarize
The new Rebel will be the product announced on the 25th of March. It should fall into our previous spec list.
Still no definitive word on a jog wheel.
Others are speculating an articulating LCD. Could you keep the screen at 3″ and make it articulating on that small body?
I'm asking around about a possible lens introduction, nothing yet.
Someone did say that perhaps Canon would launch a “Movie Lens” type of thing. It would be kitted with the new Rebel. Panasonic has done this with the GH1, so that's probably where the idea came from. I think we're still too early into the DSLR movie mode development for that sort of thing.