I definitely have my thoughts. If avatars have to deal with the worlds their predecessors create, I think Korrasami explicitly dismantling strong nations and promoting corporate power creates a dystopian corpoatist world somewhere between spacefaring Gundam, Dune and Shadowrun.
In fact I can see Korrasami's kid, or Varrick/ZhuLi's kid, or both, as CEOs being major antagonists.
Korra being the only spirit left in the chain would create interesting drama. Particularly if the Avatar themselves was ideologically against the corporatist status quo.
Also we've had a charismatic/wise avatar, and an aggressive physical avatar. I think the archetype left is a cerebral, academic, even 'wizardly' or 'detective' avatar.
Anyway, that deserves its own thread. Not trying to derail this one.