I don't think that that sort of control would fit with a NWN style game. Selecting the direction with the mouse would probably be better, but I also don't think that this will be implemented.
The closest thing to a 4E computer game we will get for a long time will probably be the next NWN2 Expansion which uses 4E lore but 3E rules.
The closest thing to a 4E computer game we will get for a long time will probably be the next NWN2 Expansion which uses 4E lore but 3E rules.