Board Thread:Game Discussion/@comment-9713390-20130614000458/@comment-10479663-20130614115724

My theory has been that this event (pt 1) would only have the 4 boss's - no secret optimus prime as a 5th boss.

Then next week, for part 2 you would switch factions - so you would have Autobots attacking the other 3 constructicons plus a 4th boss (maybe megatron again). What I think is that Optimus will be the x10 raid card (as that will cause a huge spending surge for Mobage) and that mid way through event, they will pull the 5th boss out - Devastator.