From the TRU US website, more first assortment TFs Kre-O toys have been revealed.

Figures include:
Gen1 Jazz
Gen1 Mirage
Gen1 Prowl
Gen1 Sideswipe
'Gen1' Ratchet (different vehicle form)

Basic Optimus Prime
Basic Bumblebee

Basic figures are about 100 pieces, while the 'regular' sets have about 200 pieces and 2 mini-figurines (a representation of that character and a human driver/partner).

Slated for a June 6th release in America, so could be here at about the same time.