I was also disappointed by the substance of Korra's mom's appearance. I'm still not personally sold on the revelation about Tonraq's past, and I'm feeling like this setup would be working much better for me if Korra's parents were still the everyday people we saw in the first season - if this tension wasn't coming from the division between two princes of the north and south, but from the division between public figures like Unalaq (and Korra) and normal citizens trying to exert ownership over their own communities.

Seriously, what should happen is Tenzin should talk things over with Lin about whether he's being a jerk to his siblings (of course she would say yes. :P).

I so hope we get to see Lin interacting with Bumi and Kya. I'd kind of love it if, against type, Lin and Bumi get along famously and go drinking together whenever Bumi's in town - or if Lin and Kya had an epic girlhood friendship and Kya still writes her from everywhere she travels.

Also, reading in one of the other communities, I just now realized that how horrible it is for Mako to be talking about how easy it is to dump girls with what happened between him and Asami.

Oh Mako, you are going to so have it coming at the end of the season when Korra decides she needs to take that tour of the Air Temples to develop spiritually and can no longer be attached to earthly concerns by the lips.