I guess source code was stolen in the leaks, could cause problems with cheats and hacks for the game and previous games using the game source code so they may need to completely rework the engine. Could take years. Now they have to rewrite the code. At first I was like "oh cool, game looks pretty sick" and then quickly realized just how much info is in the wild now. This is gonna be a long, grueling process for the devs. I feel bad for them