re: What Metal band did Nirvana/Grunge kill in 1991 that was going to hit next?

Extreme is a good answer. The world was just getting exposed to Nuno Betancourt at the time and in early 1991 they were on an upward trajectory and then really they stopped and the band ultimately went their separate ways with Nuno being in demand all over the place and Gary Cherones becoming lead singer for Van Halen . Pornograffitti was not a bad album.