Our very good friends at Star Wars Action News culled exciting new information out of Hasbro regarding future Build A Droid astromechs.  Hasbro has confirmed R3-A2 (last seen in that TRU exclusive ancestor 'battle pack' from 2003) in new authentic glory as well as the green astromech R4-P44 from Star Wars Episode III: Revenge Of The Sith (per Wookieepedia). Unclear however is the final astromech, R5-H6, originally though to be a renamed R5-X2, it seems this may be a different droid altogether, so we will wait and defer for a follow-up question to Hasbro to confirm just exactly who this astromech is. Hasbro also is releasing R3-01, another clear-domed astromech.