I will say that I wish we knew how to capture the feel of World of Heroes or All-Star Marvel. For whatever their faults, they were games with honest-to-God history behind them. Like... I still kinda 'ship Bart Allen and Supergirl thanks to those games. And because they were so far along, they could have those legacy characters.
Starting a game now, it's like you either start Year One (sorry, legacies), go off of current comics continuity (which many of us don't really like atm), or pick an arbitrary cutoff point/play fast and loose with continuity (which works but is obviously messy as hell).
I mean, obviously this game will run that long and we'll eventually reach that long, nbd, but I do wish I could skip ahead. (Because I love me some Superboy.)