i wouldn;t put cv3 remake to farfetched it could be done on wiiware, live arcade, and psn, or on the DS
as for judgement news : castle mode as i mentioned before is confirmed by Koji Igarashi himself
For the modes, there is the following:
Story Mode where players enjoy the story of each character.
In Arcade Mode players will fight through a total of 8 stages.
In Castle Mode players will clear assigned missions in the Castle map and defeat Dracula.
In Versus Mode players will enjoy battles offline.
With Nintendo Wi-Fi Connection players can enjoy battles with friends who live far away.
In Survival Mode players just have to continue defeating the opponents.
Players can also get some practice in Training Mode.
There is also Tutorial Mode (I recommend players to start with this mode).
http://www.cubed3.com/news/11037