I hope so as well, though personally I've grown tired of the command deck. Though I still have trouble believing it there are actually people who enjoyed those reaction commands, so hopefully he goes for the larger crowd they didnt.
I can see why some would grow tired for the command deck, but in my opinion, as long as the commands change, the command deck is easily reinvented. I mean, I think the reason why some people are tired of it is because they may be using the exact same commands through all the games. If you kept a constant deck of the same 8 commands or so (since many of the same commands existed in BbS, Coded, and DDD) then one can only blame themselves for getting tired of it since they're using it in the same way.
In BbS I created different decks inspired by different things for the trio and I did the same in DDD with Riku and Sora. I like being able to play 2-3 vastly different characters so the command deck that I have for Aqua is nothing like the one I have for Terra, Ven, Sora, or Riku and thus, it's a totally new experience.
As for the reaction commands, I can see why people enjoyed them. You cannot deny that the first time watching a reaction command in the game was refreshing and fun, it just gets tiring after spamming it over 5 times in one match. I think it would be cool if they did something like with the last Xemnas fight in KH2. You actually have to beat the boss by yourself but once you defeat them, they sit there motionless and you go up and initiate a reaction command that finishes the battles. It's the best of both worlds since those who don't like spamming reaction commands don't actually use reaction commands for the battle itself and those that like them still get to see the flashiness of them at the end.