No. That Hollow Ichigo and any other model imports won't work without new motion files. If you want to replace a character for an import you have to be willing to completely remove that character from your game.
Ohhhh, I see, Thank you so much for clearing that up.
Would it make sense to put the normal Ichigo over all my metakights? he seems like he would work with the animation file. http://forums.kc-mm.com/Gallery/BrawlView.php?Number=3460&Moderated=All