Swamt, I don't think it will be all that easy. Isn't there a legal restriction on the total number of gates at LF that involves the service at DFW? It's not just up to the airlines how many gates there are. I don't remember exactly what the restrictions are, but I'm sure that LF is already maxed out on the total number of gates allowed. Oh, and IIRC, the Virgin gates actually "belong" to AA. As the current agreements stand, AA can not use them, but I'd be willing to bet they have no interest in divesting them.
Found it! From Dallas Morning News editorial
https://www.dallasnews.com/opinion/...n-love-field-gates-and-leave-compromise-alone
"In 2006, the locals struck a compromise to end Wright, and Southwest legend Herb Kelleher said, “There must be hope for world peace.” The new law, approved by Congress, allowed nonstop flights throughout the country — but not until October 2014.
It also reduced the number of gates at Love from 32 to 20, prohibited international traffic, and set a curfew against overnight flights."
All of the restrictions in bold typeface were a sop to AA and the good folk of Highland Park who didn't like common airplanes flying over their neighborhoods--particularly at night. The folks of Highland Park have not moved, and I'd be willing to bet cash money that AA probably would not compromise to help WN or DL have an easier life and make more money at LF. I don't know if these restrictions are still in force. The little airport that could has been in court so many times the past few years over this issue, I've lost track of what is/is not true.
If those restrictions are lifted, AA will probably insist on its right to fly from LF again using its gates. Now how smart that would be is not for me to judge. I know WN cleaned our clock when we attempted to provide service on the Love Field-STL route several years ago.