Here is my betting the Evo V will have the following new parts:
Pro 4/Cyclone length arms but reversable (marc was seen running a 415 with these arms)
New steering setup ala latest team driver 415 update.
The other part RC TRF415 Fnt Alum Motor Mount Item #53921 i think will be the finned layshaft cover like david was seen running at the last indoor meeting.