In a Living World, or at least, in my Living World, you could only have a new character at level 1. But adventures would be for levels 1-4, then 5-10, etc. Halcyon Academy makes a great Hub for a living world...but...we've been playing for so long, you've gone through initiations, etc. Having new people come in later, they won't have the same experience. It'll just be another campaign. Hmm. Unless I have a "New Class" join up, where new students come in and go through their own initiation, I'm not sure if I can just add new players.
With one exception. I do have three NPC's that went through all of it as well. Jorrick the Goliath Barbarian, Mezzra the Drow Cleric and Korlin the Half Elven Bard. I wouldn't necessarily be opposed to letting someone take control of one of them. But that's pretty limiting.
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