I wouldn't like another Oracle game simply because the Oracle games are clearly over and it wouldn't make any sense to start a new one, but I would certainly like to see something like the Oracle games. I'm not necessarily talking about a 2D game. It could be 3D and I would be fine with it. The things I would look for is something like the changing of seasons and time. I'm sure they could come up with something else to manipulate throughout the game.
Oracle of Ages were very heavily puzzle-based. The whole game almost seemed like a puzzle with the traveling back and forth through time. In fact, and entire dungeon required you to travel back and forth to finish it because it changes drastically from past to present. In my opinion, Oracle of Ages was a lot better than Oracle of Seasons for this reason. Oracle of Seasons seemed to have better items, in my opinion, but Oracle of Ages had superior puzzles and the battles weren't a pushover at all.
Both of the games were very entertaining and the final bosses awesome, and it was great how you could link them together. It wouldn't work to have another one of them, though. Like I said, they have ended, and there isn't a chance of another one of them that I see. I wouldn't complain if a game was sort of like them, however.