The musician also said he has recorded a new solo album with Rick Rubin
But singer says they need to become friends again before considering a reunion
Corgan is back on speaking terms with another member of Pumpkins' classic line-up
He was previously Senior Producer of Creative and Talent Development at Impact Ventures
The frontman has told fans to expect something "big" in the near future
The Smashing Pumpkins frontman performed new material during a recent acoustic set