Personally, I don’t think that one modding ownership rule is going to be enforced anymore, and if it is, it certainly isn’t going to be in two months. But on these specific terms, Frostfeast was meant to be a community mod, and as an “official” holiday mod, I don’t think I or Froggy can claim ownership of it per se.
It’s fair to say that I’m disappointed how Frostfeast overall turned out, compared to what was planned, so my disappointment should be containable even if - worst case scenario - somebody else picks it up and butchers it.
For a pure, functional update to make sure it works anymore, I would appreciate it, so go ahead. Adding features, changing mechanics, and all that is a bit wonky though. I’m not going to forbid it, nor can I really, but I would like to see Frostfeast continue in the direction that it was heading.