I've been somewhat in touch with Vinnie Vincent last year. He has tracks that were never released officially (the guitars from hell/guitarmaggedon album(s)) and I understood he reworked old tracks. He also said he wanted to rerecord the All Systems Go album the way he intended it to be. No news since then. I hope he will release something. I'm not so sure he will though...
Frontiers could be a nice option though Serafino would have to put much money on the table and let Vinnie Vincent do things the way he wants to.