Any editor higher in the tree, as well as meta and editall editors have access. Eventually someone will do some work on that category, when that will be (since we are all volunteer) is another question--and one that has no answer. Some categories are edited more often by "other" editors than by the "listed" editor, seeing a name there isn't a guarantee that a site will be promptly reviewed. Editors have personal lives also, and it is up to the editor how much time is spent online. For instance, I have "pet areas" that I like to visit and edit in--and they appear to not be tended by any specific editor.
There is never any way to know for sure how long it will take, but definately you should only submit to the one appropriate place. Even if you were to submit to a less appropriate spot because there was an editor listed, it would just mean waiting until that editor would move your site to what they deemed appropriate and it would wait all over again which could actually take more time in the long run.