I know there are some fan subs happening but nothing official. If they ended up getting Howard Ryshpan to do the sequel voice for Medndoza it would be like getting Peter Cullen coming back to voice Optimus Prime.
In my opinion, this must happen!
Recently when the original cast had a reunion they did a "voice jam" for one scene and Howard Ryshpan sounded particularly excellent. We should start an email campaign!