Status of Hipe
From Hipe 2.02 onwards, Hipe can be built against hipecore instead of Qt5WebKit.
Hipecore is a modified and cut-down version of the WebKit engine which is optimised to be more responsive and less resource-intensive when used with Hipe. It is a leaner codebase without various features needed for web browsing but not needed by Hipe.
Hipecore will conflict with an existing Qt5WebKit installation so should not be installed on a system where QtWebKit is required for other applications.