That's interesting. It's nice to see them releasing images that were shown at their BotCon panel.

Just to clarify, the images actually show the first three waves of Generations (the facebook page only says the first two).

Wave 1 - Jazz, Optimus, Shockwave (August)
Wave 2 - Blastoff, Onslaught, Brawl, Vortex, Swindle (Oct)
Wave 3 - Ultra Magnus, Insecticon, Starscream, Sideswipe, Fireflight (2013)

A long time between waves, considering how frequent the Movie and TFPrime waves come out.