Here's the goods: http://lodestone.finalfantasyxiv.com/pl/company/immortalflames/index.html#news

Now on with the awesomeness.
The art, as usual is superb!! I wonder if it is possible to get a blown up view to translate all the Eorzean text in it.

Hints on the next two Primal battles? Garuda & Leviathan.. Taking place in Black Shroud / La Noscea respectively due to mention of the respective City-States having problems defeating them.

Also a mention of the Sahagin paired with Leviathan, could this mean a Sahagin stronghold is on its way in 1.21? Then again Titan and the Kobolds are also mentioned... Oh the possibilities.

4 Strongholds, 4 Primals, Ifrit was #1. Garuda looks to be next on the list if you take into account that they have shown off weapon art.

Ifrit
Garuda
Leviatian
Titan

I'd say we are well on our way.