I asked one of the former Spellborn directors who owned the Spellborn rights, I need to look back at the chats logs but from what I remember, it's still Spellborn NV, and according to him, would be hard to convince them to actually do something with the license...
But knowing who to contact would be a great step forward for sure.
I remember doing a lot of digging on the subject 3/4 years ago, at the same time I started working on the server, but difficult to be sure who's still on board on the Spellborn license and who is not.

Okay I found the log:
"Hi [...], Spellborn license is still owned by Spellborn International N.V. They are not known for their flexibility when it comes to licenses, and its hard to contact them. They are not very responsive."