Everyone seems to love GoCentral and you're not alone wanting it in your Reseller store @FRANTRIAN3. I'm not sure that given the name it would fit into the Reseller environment? I've been a Reseller for some time and I've never sold any of the website builder or website designer products in my store as my business is web design.
Though I can't give you an official answer I'm thinking that eventually GoCentral will eventually be the only website builder and be added to the Reseller? If you feel like GoCentral would be a good seller in your store you should push to get it on the Reseller @FRANTRIAN3. Not sure but GoCentral might also be available to be sold from the API?
roy darling *my posts seem a lot shorter in my head