The AC trademark is meaningless. EA will never make the game we want.
The main problem is that what developer is going to make a PC only version of AC? At least with Syndicate you could create a game that would work across the PC and consoles. But the 'traditional' AC simply can't be done on consoles.
Thus is EA going to give some unknown studio tons of money to make AC and only be able to sell it on the PC platform? Of course not. They're more likely to go the current "X-COM" FPS reboot route of some kind with AC.
The trademark thing is more to disallow 2K from making an AC named game, rather than enabling EA to make one.