The amount of time left had an effect on health recovered in XII. I'm still not sure if it matters in XIII. If it does, that's a good reason to stick to 60 second rounds. That plus 99 seconds for Dropkick Raiden is insane, lol.
As far as commentary... it wasn't too bad. I was happy to hear some KoF knowledge proper being stated. I could easily do without the excess cursing or goofiness/joke that people try to add to commentary; it always seems to fall very flat, and really just ends up distracting from the game, but this particular commentary didn't fall into those vices too often. Sporting even-style hype + genuine well-informed info seem to be the 2 most useful elements of solid commentary. Kane and ANSWER pulled it off pretty well at ReveLAtions, I'd say.
On to other things, first, thanks for more artworks, Amedo ^_^
On DLC stuff, lets just say that I hope SNKP keeps everything in the arcade in the game, and DLC is really additional stuff to the game. Putting elements of DLC on a disk isn't a bad thing, but having it ALL there is pretty shady.
I wouldn't mind paying a SMALL price for colors, but I think it'd be better for them to use them as either free promo DLC (like MK is using costumes to buff up "compatability pack"downloads), or as a way of padding paid DLC (like including colors for teams with characters or stages). Wouldn't mind paying a small price for 2nd Palettes like "Big Bear" and "Mr. Karate" stuff, since they've got some solid elements of redrawing spritework in them. Would prefer them to come in expensive packs, though.