If The LEGO Company is smart, they can still remake the game as a standalone tittle with, lets say, up to six player co-op. Certain aspects of the game however, are still a bit MMO'ey, and I expect that would be the main deterent keeping them from doing so.
They might have to beef up some of the mini bosses' HP and throw in a few more boss fights, maybe sell us new areas as DLC every now and then (Unlike other games, I beleive LEGO can justify DLC as new themes are released and adapted into the game), I would buy this at full price for console if they remade it as such.
Of course, the average LEGO Enthusiast would probably but this. The problem with my logic though, as much as the entire LEGO fan community would want the game beefed up as a standalone title, we only make up 5% of TLC's customer base.