I imagine Saurik will update Cyntact. It's kind of his baby - it was the very first paid package in Cydia, after all. And he makes more off of it than off of even the most expensive third-party apps in Cydia. But I imagine he's got a lot in his plate right now, and iOS 7 may have made fundamental changes tht will require a rewrite of what had been a mature and very stable app.
I emailed him also about it, about two weeks ago, never got back from him. I do respect what he's ding for JB community, so he just may not time to read all emails he's getting from us. Can't wait this tweak to be out for iOS7.