They are constantly being rebuilt at the Lima, Ohio tank plant, the only one in the US. As far as I know, no new hulls are being built at present but as long as a hull is reasonably straight and not too damaged, it can be refurbished and a “new” tank built on the hull.

As for where these are going, it’s anybody’s guess. It’s reserve training season, so there’s that. It is a really large number of tanks though.