Gli ho scritto ma non mi ha ancora risposto. Nel frattempo ho sentito anche Lukas Thelin, grandissimo artista che si occupa dei disegni dell'edizione svedese e mi ha risposto così:

Thank you Massimo, I'm glad you like them. With any luck the new Heroes of Magnamund supplement will be coming out this summer.
Since I don't personally have the reproduction rights to the Lone Wolf artwork I'm gonna have to talk to my friends at Åskfågeln publishing first. I'm glad you brought up the whole merch question though as I've been meaning to look into it for a while. I'll get back to you in a bit.
Regards /Lukas