After discussing the subject at hand with 75, we've got some pretty good ideas for wads to host in different combinations (I'll get to that list later).
I'd like to expand on this; I was thinking of featuring one wad every week or every two weeks that I wouldn't be comfortable hosting 24/7. This is a good opportunity for strange wads to get hosted that are either too short or too unstable to be left alone for hours on end.
The existing servers aren't changing, my Chex Pack servers and CQ: TLQ servers, as well as my Doom servers will be up 24/7 as long as I am able to host.
There are not many chex wads that work well online in Zandronum, unfortunately, so there will be quite a few servers featuring Doom-based wads. I can't speak for Quadrumpusguy and what he likes to do with his servers, but I will generally be hosting Doom wads with the real Doom2.wad.