Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
I've been using "most imminent" and "impending" to some degree of success since this Question, so I'll accept this as my answer, though in most everyday use, where specificity about sort order is not that critical, "upcoming" is, of course, the better choice.
