I'd say we're more likely to get Ishgard unlocked and more of Coerthas/Mor Dhona available in the first expansion, possibly along with Ala Mhigo. There's way more tie-in with Ala Mhigans running around as refugees and whatnot than there is with the few Sharlayans we've run into in the main story scenario. Plus, Ala Mhigo is under Empire rule, so there's a continuation of that thread from the 2.0 storyline that players can build upon.