We can only hope that CBS would just buy WGCL and make it into an O&O.
As Meredith hubs 10 of its stations out of Atlanta, there's about a 0% chance of that happening.
WGNT was the hub for the Southeastern stations of CBS until it was sold about 2 years ago, so if the price is right then Meredith would sell WGCL-TV to CBS. At the moment, CBS is the only major network that has made large purchases.
The number 44 DMA versus the number 9 DMA. I'm pretty sure Meredith's price would be waaaay beyond what CBS would be willing to pay. Given that Meredith's print business is...not well... it needs everything it can get from its broadcasting business.
You haven't heard what CBS Corp. new strategy is nowadays. They are realigning their company (under word from Summer Redstone himself) that their market clusters must revolve around multimedia synergy (TV-Radio-online). WUPA doesn't even have its own news department, but WGCL does.
Also if Meredith is hurting for cash so, they might just take whatever large pay off CBS could offer them for the CBS affiliate of the nation's 9th largest market. In other words, they may in fact look into buying WGCL-TV, so never say never with CBS.