Next to work on in no particular order: Yookoso!, Minna No Nihongo, Progressing from Intermediate to Advanced, and the JLPT lists.
By the way, as I've been building these lists, I've been tweaking the way words are parsed. Adding words from Japanese lists should be a lot smoother now since I've made all these changes. I've got some ideas on how to make the list editing process much smoother and easier, though, so it will only get better! Lists are going to be becoming more and more important, so it's vital for editing them to be as fluid and intuitive as possible. So many plans, so little time...