[quote name='WormFOODx']After looking at the suggestions so far Resonance of Fate is winning. (I'll take a look at Tales of Vesperia and own Lost Odyssey, in fact I realize I have a lot of unfinished games!)[/QUOTE]
Resonance of fate is very entertaining with the combat system. However, if the combat and grid system don't sustain your interest alone, you won't get much out of this game. You will grind through many many battles trying to get items and hex pieces without any trace of a story. When there is story, it is relatively entertaining. Just be warned that it takes about 10 hours before anything even starts to happen.
I would recommend Valkyria Chronicles above all else this generation, no question. Too bad you've already played that. My number 2 is Dark Souls, don't know if that counts.
If you know you like NIS, you have the usual Atelier: Arland trilogy (third coming out in a bit)
Eternal Sonata offers an interesting story and combat, and will appeal to your classic JRPG need.
Sadly, there isn't a whole lot else other than Magna Carta, Lost Odyssey, Tales. I agree with BigPoeticCanine, I've been going back through PS2 RPGs I never got around to and am having much more fun than with most new ones.
Do you have a component cable for your PSP? If so, why not play some Legend of Heroes: TitS on your big screen?
Edit: I don't know if you have a Wii, but consider Endless Ocean: Blue World. It doesn't look like a JRPG, but it has the exact same elements minus the tedious combat. Main story, side quests, collectibles, exploration, a home base to build up, buying, selling, upgrades, party members... Honestly it's a better RPG than most 'real' JRPGs this gen.