Small box with questions about gameplay at Annihilus hehe

1) If there would be 64 people in a one game — how would be increased monster power?
2) Are there would be any new locations or quests in a future? Is it possible to add new content to Diablo 2?
3) If so — are there any plans to make raid PvE content (for 10+ players) — uberboss for 16 players to kill, for example?

I'll write some more questions later Also I propose other users to post questions here, so we wouldn't have too much topics with a similar questions.