Well, I think most of what the OP posted about is wishful thinking, to some degree.

Yoshida mentions that Treasure Hunt will be in 2.1 and in fact they are going to go into more detail on that in the next Live Letter on December 14th.
As to what it actually involves.. well.. I guess we will find out. But it does appear to be primarily aimed at crafting/gathering classes or so it seems, from the sounds of things.

All of this "Chocobo" stuff, there has been no word of. Personally I am totally for alternative new ways to level up my Chocobo companion, and the ideas sound cool. There just hasn't been any word or even mention of this as of yet, for ARR.

Added: As far AF2, yes we will be getting some, but likely not anytime soon as all that has been shown (on the previous Live Letter) was concept art.