So people spend $20 to buy a level 60 character, then in a month they hit cap and start complaining about no new content. I find it ironic that you link to the "Maxed out and bored" post here at massively but don't address that issue.

I really think Blizz has looked at this problem and their solution was to increase the leveling speed from 20-60.

What would you do about PvP on this server? Unless you're anticipating having a bunch of them, you'd lose the cross-realm PvP solution that was supposed to alleviate the long wait times.

BTW, one other MMO did something like what you're suggesting... I'm spacing on which one it was. DAoC perhaps? After hitting cap, you could start a new character at level 20, if I'm remembering correctly.

It is kind of amusing to think about a server with a bunch of level 60 characters who have no clue how to play their class, though.

Another idea would be to borrow the sidekick/mentoring system from CoX/EQ2. That lets friends play together no matter their levels, and it helps the lower level friend to catch up to his "older" companions.