Hi,
I'm planning to orphan WebKitGTK in Fedora since I'm leaving my job at Red Hat at the end of this month. I think Red Hat no longer intends to maintain this package. If anybody wants to own it, let me know.
This package is not terribly difficult to maintain downstream, but it does require keeping up pretty closely with upstream updates. The volume of CVEs is considerable, so please only take the package if you're comfortable with watching for upstream releases and preparing those releases for all supported versions of Fedora. The main risk is s390x-specific build failures, since that architecture is not tested or supported upstream.