I think those 2 are the next 2 major necessary python libs, once these are done, most of the more useful libs are there. Especially popups would be great to see, because it doesn't really make sense for plugins to have their own implementation (as it causes problems as soon other plugins override the current popup).
Sound would also be rather useful, since the Engine API is rather complex and also different for CS:GO/CSS :P
Anychance popups are next ? (and sounds)
