As usual, Hasbro have revealed a lot of stuff at SDCC that they held back during BotCon... or told us not to photograph.
TFW has a special link to their SDCC news articles here.
Featured items...
Generations Scoop & Armada Starscream (and Construct-bots Predaking)
Generations Whirl (already posted here)
A sneak peak at the last Beast Hunters episode (spoilers)
Rescue Bots Beam Box game system (like Skylanders)
Kreo Command Centre & Customisable Kreon sets (seen at US Toyfair)
Probably more to come when the presentations are done sometime in the next day or two.
I hope that cartoon episode was only just finished since BotCon, as it seems that between BotCon and SDCC, SDCC is the convention best to go to for new Transformers stuff.