If Varsho, Springer, Kirk and Gimenez all return as soon as expected then we probably don't need one (unless it's a clear upgrade) as some sort of combination of Loperfido, Wagner, Schneider, Straw, and Clement all get moved to the bench or optioned.
But someone with positional versatility like Willi Castro could still fit. Rosters expand in September and then in the playoffs we can run with a 5 man bench.