If the last 7 E3s have taught me anything, its to never expect anything JRPG related.
Besides, JRPGs are pretty much TGSs thing anyways (also anime/manga tie-in games).
The whole FFXV rebranding/re-introduction thing was E3 last year, you know.
First, that's pretty much all they did (well, okay; they did that and showed 10 seconds of KH3 even if said trailer contained no context outside of "Sora's Back!"), and second, that's why I carefully chose the word 'expect'. There's always a chance to get pleasantly surprised (for instance, Nintendo &| Atlus remembering that SMTXFE thing from a year and a half back and finally posting something about it).
Though perhaps I should've added the extra qualifier 'meaningful' in between 'any' and 'thing' in my previous post and subsequently shuffled 'thing' to the end.