According to the lead editors and title managers, there are currently no plans to wipe away the status quo of World's End, which is refreshing. It isn't something that can be wiped away, I think, not like removing Norman Osborn from power or something along those lines, and I'm impressed that Wildstorm are dedicated enough to what they've set up to keep it this way for at least another year.
I do miss Jenny Quantum, though I don't think anyone other than Brubaker had a really good handle on her. I'd love for her to come back, only to find not even she has enough power to sort the messed up world out - She is, after all, directly linked to the status quo of the Twenty-First Century, so she'd likely be weak as Jenny, if not moreso.