I'm contemplating playing the remake for a third time all the way through. If you've not done Intermission, then I would do it all again for your second(?) playthrough. Intermission is worth it.
Still doing FFXVI myself. Just at the point where I'm about to destroy the final crystal, so pretty much endgame. Lots still to do though I imagine before taking on Ultima at the end. In terms of story, this is the best FF since X, bar 7 remake of course. Gameplay is a little harder now, the behemoth and Barnabas almost had me a couple of times. Still haven't died once yet in game though