The odds are pretty good that no one is working on a jailbreak for iOS 4.3.4 or 4.3.5. Mainly because iOS 5 is "right around the corner." So, in all honesty, I don't expect any more 4.3.x jailbreaks.
Heck, they could prove me wrong by releasing one tomorrow, but I think time would be better spent keeping fingers crossed for a successful (and quick!) jail break for iOS 5.
Sorry 'bout that.
Marilyn