All I've seen so far is modded color schemes. AFAIK, the "death animation" isn't rendered, it's a video. So no, the model isn't there. There is already a mod to replace a suit with the final metroid suit, so I guarantee it would have already been done, if that weren't the case...
(warning: there is also a mod to play with the actual metroid suit, (as in, not a texture swap) plus one with the suit and the hyper-beam thing. You cannot beat the game like that. It will always freeze/crash).