[Serious Lee]

If it's going to be a two wave series, and there are going to be a few, hate the term, 'swaps', but that's another story. Does anyone have the inside track on other character appearances in the film? Would we possibly be getting a Thanos or a Ronan in the second wave? I don't know how the Starlord teaser from SDCC 2013 slipped my mind earlier but that would seem like a lock as well...