Persona 4 Revival has been given an ESRB rating right in the midst of this year's not-E3 period, suggesting that an appearance at either Summer Game Fest or the Xbox Games Showcase could be likely.
As highlighted on the Persona subreddit, the upcoming remake's ESRB rating has been added to its Xbox store page, giving it a mature 17+ rating. That gives it the same rating as Persona 4 Golden – the JRPG's expanded 2012 release – with almost identical content warnings given.