Welcome back to Eorzea!

Sadly I play on another server, but the next best thing is to check the server forum for Moogle and have a look at FCs who are more social and mature in their attitude (which can be found here.).

For general information about everything that's been added to the game since you last played, having a look at the patch notes on the Lodestone is a good way to become informed about additions and changes to the game, and this page is an updated general progression guide through the game which lists how to unlock new content including dungeons.

Anyway, good luck to both of you.