I think they should use different servers for RoS, D3V, Ladders and Hardcore. Like you can now play in 3 realms (EU, US and Asia) and so have 3 places to start from scratch. But by using the 4 playtypes as realms instead of geographical locations, the game can be balanced for each type of play.
Things have changed so much in RoS, starting from scratch won\'t be a real problem for the experienced players and all their stuff they had in D3V would be obsolete quite quickly. Also, all stuff they bought in the auction house would be overpowered or obsolete quite quickly. With this solution they can still look at those items when they play D3V again. And with all the gear changes, you can create the new build types from scratch. And no advantage for players creating build types with gear that is no longer obtainable for players that don\'t have that gear from \'the old days\'.
The ladders would be resetted anyway on regular basis, so by making them a different \'realm\' you solve this issue easily.
As for hardcore: I\'m really frustrated sometimes that my softcore and hardcore characters have to come from the same limited pool. I like diversity, playing the game a lot on PC and console, and on the console I switch between all 5 classes and different difficulty modes. But with the limitations on the number of characters you can have, I have to implement some tricks to do the hardcore mode on the console (I only play hardcore in soloplay, so I created an extra account on the console without PSN account, being able to play the game only on offline mode.)