I can write small guide for people who will possible have alpha acces but dont have any character or items currently. I can explain how to make some modification to your in game files to get gear and high level characters super fast and then you can transport characters into D2R. I hope it will be possible tho. They said it should be possible to use old saves.
So anyone interested? I am aware that you can probably downloand already made characters but some people do not like download stuff from unknown sources