Complex sentence: Cleanup of the Georgia Dome site is expected to be completed by February 2018 with construction of the Home Depot Backyard to follow, while the planned GWCC hotel is expected to begin construction shortly after Super Bowl LIII in February 2019.
Split into simpler sentences: Cleanup of the Georgia Dome site is expected to be completed by February 2018. The planned GWCC hotel is expected to begin construction shortly after Super Bowl LIII in February 2019.