Why isn't Cobi making a collab with Girls und Panzer?

I was wondering if Cobi is making a collab with Girls und Panzer. Like what if they would make some exclusive sets with the characters of GUP like for example "Panzer IV with Miho and her crew", or maybe "Nonna's IS-2" or even "Churchill VII with Darjeeling" abd even more. It sounds weird or crazy but i would definetly buy any of these sets because i freaking live Girls und Panzer. And that's making me asking Why isn't Cobi making a collab with Girls und Panzer?