Maybe if he were to draw something other than furries, such as what he had in mind for SMBZ, it would please both himself and us fans at once. That's what I think.

That's sort of the problem. He hasn't felt like doing sprites for quite a while now.

You know, you do not ask Alvin to continue his series. He decided to stop, and that's his choice. As a fan, it's very frustrated by his decision, but it must be respected.
Alvin Earthworm has created much more than international series (translated into French, Spanish, German and Portuguese), he created a very active community of fans. Some of them did not want SMBZ stops here, and therefore decided to continue ... more or less well.
Videos, derivatives, and other animations were created with a series SMBZ and we can only thank him.

(PS: I'm not English, it's normal if you find grammaticals errors in my post)

Let's just say he has completely lost interest in SMBZ. So technically yes.