Since Square Enix has been giving out HD remakes for several of its Final Fantasy titles, I want to see them give Final Fantasy IX a new coat of paint. Or at least hear an announcement that they'll put it on Steam or something.
Unrealistic expectations aside, there's only a handful of titles that I'm focusing on from this year's E3 offerings, and those are The Legend of Zelda for Wii U, Kingdom Hearts III, Final Fantasy XV, Persona 5, Fire Emblem if and Xenoblade Chronicles X. I have a hunch that the release date the first four games will be finally announced at this year's event. As for the latter two, I don't think they'll be released stateside this year, but I wouldn't mind seeing more footage. Anything else will be a pleasant surprise.
I'd also like to see ATLUS announces the release dates of Shin Megami Tensei X Fire Emblem and Etrian Odyssey Untold II: The Knight of Fafnir for the US. It feels like a stretch, but to be honest, they're famous for keeping tightlipped about their projects until about five or six months before its release date.