Dick's Sporting goods has a new line of "kickoff creator performance shirts" for MLS. The other shirts showing up match their leaks (union, nyrb). Looks like #Quakes74 might replicate the 2001 jersey
These definitely line up with the Rapids and Crew leaks. TFC with obvious red and Chicago Fire going with a municipal flag theme

From @esvaphane leaks, the NYCFC and Atlanta United ones match up. The RBNY one matches the one spotted in NJ, and then there's SKC bringing back the argyle
Big thank you to @JonahHenderson6 for pointing this out about Dick's website having these.