Well, nothing from the reveal trailer indicated a change in tone or anything ressembling a Persona game, which I'm glad.
Anyway, the combat system was already so good in SMTIVA than it would be a waste to not reutilize it again. And also, I hope they'll go more rampage with the difficulty of the next game again, that 1st dungeon in SMTIV still gives me a smile thinking about all the deaths I got there.
No, please, don't ask for more difficulty! I haven't beaten SMT IV's tutorial yet, much less the rest of the game!
You know it deserves the GOTY.