Yeah, it sounds good and a Zero remake would be awesome. But you said to fix coding and stop hackers. They can't stop it but cant try to have a professional watching all the matches by being a spectator, which should be a choice of hunter, and if they find him AR hacking they could just ban his friendcode for like a month. That is a bit too much for a
DS game but there should be 5 people to a room, one being a spectator. The spectator has the power to remove players and report them. Also, when going on Worldwide, there should be a better filtering system. I don't want one stars getting beaten by 5 stars when they go on match my rank. If there aren't enough players, then just say it.
Back to the 2-D remakes. There should be dowloadable content or unlockables by going online to play with a different experience on a game you already beaten long ago.
As for glitching, they can fix that. They can avoid them but it would cost them.