Endgame?

[Erathar]

But can you farm armor sets in those dungeons or good items to sell?

Yup. Like most MMO's you can craft, farm armor sets , farm achievements too ( like pwning every primal's ass probably ) etc..etc..

Yoshi also told the latest content ( tower of Bahamut if I remember the name ) would be kinda hard to complete . More challenge = more fun heh ?

There's also thing you gotta do in your grand company and in your free company ( if you got one )

The rest is up to us to discover