The Au'ra are into wrestling and are Mongolian inspired. The Namazu are interested in that and have a Takakeishoish body shape. (It's a pity I helped them built an archery range, I was hoping for a dohyo.)
FFXIV is it's own thing primarily, for Hompage galore you'd be better of with Dissidia and co. It features the standard FF things and yes it has some things inspired by other FFs as optional side stuff (I can think of the Rabanastre raid story line), nur not actually that much, and gives you characters from other FFs as minions or has clothing options. You can walk around mostly looking like Yuna or Tidus and drive Cloud's bike (I recommend it, it has an extra speed up buff, very helpful till you can fly XD). Given that it has been going for years, it's just ginormous.