The term gtld is known only by domainers and registrars, more generally by people involved with domain names. For the average public, gtld doesn't mean anything. So this is clearly a domain geared toward the domain industry. There are already several websites reporting domain sales, so I don't know what to do with this domain. Personally, I don't see any potential buyers here. Unless you develop, the value is nil in my view, but is there any point developing it - I doubt. Good luck.