It would be the best thing to happen to this game if they added that in my honest opinion. Some people don't wanna leave their data center for whatever reason some do the ability to play on your main character and queue for with whatever friend on whatever data center sounds amazing rather than having x amount of alts for x amount of data center different friends. It's an amazing concept that would help alot of people is it gonna happen though? No most likely not. SE as shown in the past goes the cheap routes when possible on alot of things. I have hopes eventually it will come but I don't think it will at least not with how the current mindset is of the devs/upperheads at SE and regarding the spaghetti code/dying hamsters we have in which we can't even craft from our retainers for example.