The new renderings for the Georgia Dome replacement were recently released, via the AJC.
Yes, it will be the primary home of the Atlanta Falcons, but it’ll also be home of the SEC Championship. The renderings are ever evolving. According to wikipedia, the Georgia Dome was completed in 1992 at a cost of $214 million and was one of the largest state-funded construction projects in Georgia history. The Dome received $300 million in renovations between 2006 and 2009.
The new Atlanta Stadium is set to open for 2017 season, and here are the renderings: