There are a couple of ongoing things with respect to Plasma Active in the Kubuntu Team. I've taken over the task of packaging Plasma Active 3 from Rodrigo, concurrently we are trying to get maliit into raring. We also have plans to backport PA3 to Quantal. Since we also have KDE Beta's coming out and we have to work on those as well, it's just taking more time due to the limited man power.