It is a concern if they didn’t design/test with MP in mind. But I have faith they won’t make such a colossal mistake. Matter of fact is they have a long way to go with optimization before tackling MP. If my computer is going nuts at the lowest graphics setting then I shudder to think what it’ll look like with multiple people firing off multiple spells. As it is I’m constantly afraid my computer is gonna blow up because the fan is going full throttle when I play this game. No way I’ll ever try MP without seeing major improvements to how the game handles resources (calculations graphics, etc).