Interesting, but, much of the space in the center would be filled in with routes leading from one hub like CLT, and then onto the other. Use of the CRJ-700/900s and ERJ170/190's would add anywhere from 6 to 12 decent markets in which good E/W connections on the merged carrier could be made. why bother with the heaache that is ORD when you can connect thru PHX or CLT instead...?
Places ike OMA, DSM, OKC, come to mind as likely prospects...
I would expect more "direct" flights bypassing hubs altogether for routes into markets like LAS, DCA, LGA, and so on.
Another thing to consider is how the involvement of Air Canada would influence that map as well.
Anyways, it looks like a much more rational setup than having had two hubs in the same state ever was...