My raid zone just cleared out Fordel Midst: Rememberances in Aurelian Coast, and we decided to head back to AC to start up the other raid zone. While using an evac or an AC bauble is an option, there really should be a proper zone-out portal that should appear after the final boss is defeated.
Oh, okay. I would think something more along the lines of the Wayward Manor zones, where the zone out appears in the boss room itself. I guess we didn't consider backtracking a little to find anything.