iphone x battery case

Will Apple make a battery case for the IPhone X? So far, I am satisfied with the battery but would like a battery case for my heavy use on certain days. I’m welcome to hear about third party products as well.

I won't be getting the X, figured maybe this would interest a few here? This came in my email this morning. I never heard of the company "ZeroLemon" So i really don't know how they are. I bought a few things off this page for my phone, apps for my iMac. Some deals are pretty decent...