Republic to buy Midwest and Frontier

A little shocking to me, but is regionals buying majors the future? Looks like 2 hubs, one in MKE, and one in DEN. I would assume they would combine this operation into one.

bizjournals.com/denver/stori … ily33.html
online.wsj.com/article/BT-CO-200 … 11184.html

I’m curious about this one. Republic is buying out TPG’s shares but I’m wondering what will happen to the non-voting shares held by Delta Air Lines.