If you read the Redevelopment plan, it states:

Improvements to or Construction of Public Buildings and Environmental, Cultural
and Recreational Facilities
These projects include, but are not limited to:
-Improvements to the Ladson Road EMS/Fire Station
-Jessen Boat Landing Improvements
-Town of Summerville’s “Bend on the Ashley” Eco-tourism Center
-Improvements to the Dorchester County property currently operated by the
Charleston Battery Soccer Club
-Branch of the Dorchester County Library in Oakbrook

My guess would be that the upgraded soccer fields will be available to all soccer clubs once the lease with CSC is up.

https://www.dorchestercountysc.gov/home/showpublisheddocument?id=19596