My two cents:
I agree that she looks like an adult Charlotte, but I also think that the person she's talking to might be Jonathan Morris, all grown up to.
I.e. this might be a direct sequal to PoR? Which is kind of ironic seeing as they are reusing all the sprites and backgrounds.
But that's kind of at odds with Iga saying that he'd be doing a game somewhere between LoI and Cv1, atleast I thought that was kinda confirmed.