I don't think Mininova tracked anything. They only indexed. Which means every one of those torrents is alive and well on their respective trackers. On top of that almost everything has like 3 or 4 trackers. Then you have sites like Torrentz which index the indexers. The only way a torrent will die is if everyone stops seeding.
There will be another *nova one, I'd guess.
Just like after the suprnova shutdown, mininova took over, maybe it's a micronova next time.... lol....