Continuing past Otari question

[Cassandra Silvania]

I'm currently running an Otari campaign, planning to finish up Troubles in Otari but since it finishes at Lv4 I was wondering if there was a way to continue the campaign with the same characters as my players are really enjoying who they've brought to life.

Or if it's possible to homebrew some kind of extension campaign past that that would work for them. (Though I am totally new to homebrewing campaigns so I'm not sure if I could do it well >_<)

[A Mite Excessive]

The Abomination (whoops) Vault AP is set there, they'd probably run rampant through the first book, but thing'd even out by the second.

[CrystalSeas]

The Paizo Creative Director, James Jacobs, made some suggestions in this thread
Running Abomination Vaults After Troubles In Otari