I've been away for a while programming in Python (significant white space and slower than Lua/LuaRT, but lots of user-contributed libraries--I'll never love it like Lua). I see LuaRT has matured quite a bit, with some nice new modules. I particularly like the ease with which classes can now define iterators.
In terms of specific modules, I would like a video module along the lines of the excellent audio module. It would be quite nice to play .mp4's, etc. in a canvas (or in a new control).