My scan showed no new Custom Level Questz ... perhaps some of the Battlez are new to us ... you would know that. If there is anything new (to us!) it would help if we could locate the source and add some to our collection.
The videos of Battlez are all Standard ones... The only Custom Levelz not published on our forum that I found are on Teo's playlist. They are his own designs, though they'd require updates to bring them to modern standards. So no official releases for now.
Thanks for the shoutout, swietymiki. I just made a recording of Rocky Pyramidz and added it to the playlist as I realized that I hadn't covered that one yet (though I couldn't get a PERFECT score - it's been way too long). I managed to get Gruntz running on Windows 10 via the same method I used before and so far it seems to be working fine.
The other two levels (Icy Quest and Strong Defense) do not have their own pages here. I never submitted them since they were more or less just mapping practice, certainly not really worth anyone's time.