I personally want Leon to be included instead of Gen fu not only because I absolutely despise Gen fu but also because Leon never got the chance to really develop a story. He only has a backstory, while Gen fu actually had a story that has ended. Ein also could be a possibility because of the relaunch of project epsilon during the events of 5.Thanks for details.
So weird to have the last reveals being unpopular/deceased characters... So only 2 characters left? Leon and Alpha-Lauren?
Revealing Gen Fu and Raidou as the last two characters seems more likely, but not very exciting (not for me, but for the average players). At least improve their movelists..
And having Ein makes no sense.. except if they make him a proper separate character with a new look, a story and a revamped style.
Sorry for going off topic.