Not unless the Americans themselves choose to sponsor and promote the idea of this new eastern European bloc, just like they did with the EU.

Yeah this is the shot, there will without a doubt be the separation of EU into northern-western and southern-eastern blocs, first represented by neoliberalism defending the status quo and second represented by zio-conservatism which opposes the northwest nominally but cooperates on most levels (we can see this forming already by looking at Višegrad Group, Intermarium, or similar projects).