I throughly enjoyed Resurrection, I agree it was too short though. IMO, the two DLC's should have been one, but Konami have turned its economic plans for Cv to a milking machine, so no surprise there.
As for the "extra" DLC which you insist should come after Resurrection Wallachia, I'm not sure I agree. By the end of Resurrection, and knowing how he ends up in the future, I think everything is wrapped up nicely but with enough left open for the sequel.