Repacks of RotS Aayla and Bly along with 3 Evo clones would be easy for Hasbro and sell well, so that's probably the best choice here. However, I would prefer:
NEW Barriss Offee
NEW Gelagrub
NEW Gossam Commando
NEW plant of some sort
Evo clone
Of course, knowing Hasbro, we may very well get:
RotS Bly x1
RotS Aayla x1
Cantina Han x3