There's an unconfirmed rumor out now that Jojo Pt3 will air in Spring 2014
AW HELLS YEAH!

and that they're doing their own casting for it independent of the Jojo All-Stars game, so the VA will be different and it'll be announced at Jump Festa in Dec.
AW HELLS NAW! D: I hope this rumour turns out to be complete bullshit, because the casting in ASB was great and CONSISTENCY IS IMPORTANT GAIS.
Ono Daisuke as Jotaro is amazing and should not be touched, but more importantly, changing the cast for Part 3 would greatly increase the chances that they'll change the cast for later Parts if and when they materialise, too. Which would mean no most-perfect-voices-imaginable for Josuke and his bro in Part 4, and no Miyukichi (complete with greatest ORAORAORA ever uttered) for Jolene in Part 6. AND THAT WOULD BE A CRIME.
The Jojo rumor I posted earlier about Stardust Crusaders being Spring 2014 has been confirmed by someone with the latest Ultra Jump: http://9gal.com/read.php?tid=417705
Tokyo MX will also be broadcasting compilation specials for Phantom Blood and Battle Tendency next year. The main focus for Stardust Crusaders will be the action in the Stand battles, so hopefully they actually have animation this time. Like how they went from Phantom Blood to Battle Tendency, there will also be a visual tone shift in Stardust Crusaders making it unique and different. They also mention wanting to do something "new" without ruining the established concept of Jojo.
Fuck, if this means the "new cast" rumour is confirmed I will hit something. Interesting how the actual confirmed leak doesn't mention anything about a complete cast renewal, though - maybe the initial leaker got the wrong end of the stick, and it's still possible that they'll be sticking to the ASB voices at least for the most part, with the cast announcement at Jump Festa just being a confirmation of what we already knew (and/or reveals for less major characters that didn't appear voiced in ASB...if there even are any of those?)
I WANT TO BELIEVE