While we all bicker about the various soundfiles datamined from the PTR build, I remembered that the PTR is actually up and I decided to check out the new Alliance fortress in Krasarang Wilds, Lion's Landing. While flying mounts are restricted in and around the new strongholds, I was able to get close enough on my flying mount to give you the above screenshot before I was booted off.
Here's a closer look at the new Alliance ships. They seem to be based on the pirate ship model, but with tons more armor, much shinier, and of course Alliance colors.
Along with the ships, we also have another Gnomish submarine docked at Lion's Landing. No idea if it's ever relevant to the quests, but hey, Gnomish submarine.
The Draenei vindicatiors are out in force at Lion's Landing and I was honestly shocked by how many were present (aside from humans and dwarves, they easily outnumber every other Alliance race combined). Also, it seems every last one of them is working on their Tushui Pandaren rep judging from the tabards.
What's left of the crew from Jade Forest is back. The Worgen Druid in the background seems to be literally the only Worgen in Lion's Landing, but since she also happens to hand out dailies players will be interacting with her fairly often.
Right next door is Troteman and a vendor that exchanges Horde insignias for various items. Keeshan is oddly not present as far as I could tell, but perhaps he'll show up later. By the way, I believe the Horde ship in the background is one of the ones destroyed near Garrosh'ar point in the Jade Forest intro, and has absolutely nothing to do with the new quest hubs. They really need to phase it out...
Within one of the two keeps in Lion's Landing is our friend Twinbraid from the Southern Barren's campaign. From my understanding he's a sort of PvP world boss for the Horde.
And finally for those wondering where the Skyfire is in all of this, I found it leading the Alliance's offensive on Dominance Hold. When you have what amounts to a flying stronghold, it makes sense to use it offensively.
By the way, this was all just a quick preview and I probably barely scratched the surface on new Alliance content in 5.1. Overall if Blizzard's goal with the patch was to bring the war to Pandaria, they most definitely succeeded.