Wait, you mean I will have a massive download tomorrow, along with all the other new players? No way. That would be terrible monkey-level design. I instead assume we have everything downloaded already and a simple switch will switch tomorrow, allowing access to the full game. That's what pretty much every early access title I ever played did, and is now the norm. Anything else would be stupidly, pathetically lacking foresight (and would doom the game to a bad start that it is unlikely to recover from).