Team’s future in St. Pete to be determined by the end of the year. St. Petersburg Mayor Ken Welch has finally made official what has always been the most likely course of action regarding the redevelopment of the Tropicana Field site: he’s going to choose his own developer, and he’s going to do it with the Rays involvement. Early in 2020, former Mayor Rick Kriseman made an attempt at finding a developer for the Rays 86-acre stadium site, which occupies nearly 25% of the downtown footprint. It was an appropriate course of action for the City, but one met by…