I still have a few hundred dollars on my battle.net account from D3 launch RMAH, which has basically given me free Blizzard products for the last decade. The game had its problems, but there was still something in it that was worth playing despite them (and then putting the hours in to sell trash for 50$ on the RMAH). Which is how they managed to refine it was RoS into a genuinely fun arcade game.
D4 has too much half baked MMO mechanics and MTX bullshit to be easily polished in the same manner without redoing most of the game from scratch.
I still have a few hundred dollars on my battle.net account from D3 launch RMAH, which has basically given me free Blizzard products for the last decade. The game had its problems, but there was still something in it that was worth playing despite them (and then putting the hours in to sell trash for 50$ on the RMAH). Which is how they managed to refine it was RoS into a genuinely fun arcade game.
D4 has too much half baked MMO mechanics and MTX bullshit to be easily polished in the same manner without redoing most of the game from scratch.