With MWLL being ported to crysis wars am I going to have to buy crysis warhead to continue playing the beta? I will if necessary cause this mod is incredible but I dont want to if I dont have to. 
Let me be blunt and say it would be better if you did somehow get Wars. Everyone here is looking forward to the improved net performance that comes with Wars that
might even include some mediation of the lag issues that have plagued the mod from its start. Another big selling point is the ability to automatically download maps if you join a server and don't already have the map. There are some pretty good custom maps out there, so this can only be a good thing.
Wars is where this mod is going, and if you don't get it, you're only going to play half the game.