Since none of us here works for Corel -- apart from Abiel who makes occasional guest appearances -- no one will have any definitive answer to this. It has been discussed before, and the general consensus -- at least a couple of years ago -- was that Corel had decided to dump MF as it has with other programs like DVD Workshop, Media Studio Pro and PhotoImpact. In fact MF 7 at the time of its release was a case in point since there was no general release of it all around the world. I was living in Australia, which was one of the few areas where it was released, but major markets like North America could not access it... That was a clear indication at the time that Corel was intending to dump it.
Admittedly, things have changed with the debacle that followed Video Studio X3's release with that joke of a burning module taken out of the awful Corel Digital Studio 2010 package. The subsequent release by Corel of MF 7 SE went a large way to salvage the company's reputation with VS users, and the reintroduction of the 'old' pre-X3 burning module in VS X4 has consolidated that. And it now seems that people more generally around the world can actually buy MF 7 Pro these days as it is advertised on the Corel website.
But no, there is no indication at all that an MF 8 is being planned...
Though it would be nice to think that Corel may now at least be prepared to think about it...
