Given Blizzard's rep the last few years there's a pretty low bar for Microsoft's acquisition to be considered a massive success. Re-release some popular games, go easy on the microtransactions, and avoid massive sexual abuse scandals and gamers will hail this as the best thing to ever happen.
Kinda hoping they're disrespectful to the battle.net launcher though. Do the same as the Bethesda launcher and let me import the games into steam before killing it off.