I realize this is your wishful thinking but why would DAL do that? There is no possible business advantage for DAL to do as you have suggested even if SkyWest agrees to sell themselves to DAL, which is highly unlikely. DAL is not interested in buying another regional. As to buying Air Wisconsin is just absurd.

You have to pay attention to what RA and top DAL executives have been saying for the last 2 years. RA has said repeatedly that had he been in charge of DAL he would not have signed such a long DCI contract with SkyWest when DAL sold ASA to SkyWest. RA also said he plans to keep most of the regional flying INHOUSE, which means Mesaba, Compass and Comair, although the future of Comair is not as clear. Plus the name of the game is to keep Regionals from growing too big for their britches. SkyWest is already too big for their own good and saddled with way too many CRJ200s that DAL does not want.

A more accurate assessment would be to predict that DAL legal team are looking for ways to terminate DCI contracts with CHQ, Shuttle America, SkyWest/ASA, Pinnacle and Mesa even as we speak. DAL is probably planning to reduce the DCI numbers down from 9 today to 4 or 5 at the max. Mesaba is going to be left with all jet fleet and even their CRJ200 will probably be going away, leaving Mesaba with all CRJ900s and possibly CRJ700s in the future. Stapling Mesaba to the DAL is a remote possibility but possible nonetheless, in view of the fact that DAL already has CRJ900 payrate and DAL can either straight staple or give longevity credit for pay and benefits to bring top 150 senior pilots on board with the idea.