According to BBTS (via TFW) Wave 5 of Deluxe Generations will be Chromia and Arcee.

Neither of these characters ever got officially released in the G1 line so I'm sure there will be many people (including myself) hoping these are G1/IDW characters. But I fear these may be repaints of ROTF Chromia and Arcee since we are heading into AOE and there will be movie toys in Generations for the release of AOE.