From: www.fancast.com

While we’ve already provided a glimpse of things to come on ‘Fringe,’ here’s more food for thought from the cast as to which mysteries might yet be revealed, and when. Granted, in a world where shapeshifters, underground cannibal mutants, human bombs and re-animated cryonic frozen heads have free reign, this creates a pretty wide berth. Even so…..

See what’s in store for the rest of the season

Joshua Jackson has weighed in on the possibility of “alter Walter” wanting his son back. What does John Noble think about the prospect of a Walter vs. Walter smackdown in Fringe’s future? “It’s certainly something we’ve talked about, quite seriously,” Noble admits. “It would be fun to do, and have the Walter from the other universe meet this old Walter. The other one will probably be fit and healthy…..and very angry at having had his son stolen, I would imagine. That will happen. It’s too delicious not to.”

Indeed, Walter provides more than his fair share of delicious moments, thanks in no small part to those misfiring neurotransmitters. But with increased rebounds in the mental health department, is there a chance that Walter might one day be completely sane again? “I don’t even know what completely sane is, to be honest with you,” Noble responds. And even so, he added, “I don’t know that we’ll ever see Supreme Court Judge Walter.”

Walter versus Walter aside, what about the second biggest pending cage fight in the Fringe-iverse? Noble promises that the William Bell confrontation will be coming “very soon.” (No, really - how soon?!?) “I’m not sure that will happen this season,” he ventures. “I’m not saying it won’t, but I’m not sure it will.” (Spoken in true cryptic mystic Walter fashion.)