This document discusses options for building cockpits and custom themes in SAP using WebDynpro and UI5. It suggests that while WebDynpro currently uses its own elements, UI5 elements could potentially be used instead by exposing the WebDynpro context as a JSON service. The document outlines similarities between the MVC architectures of WebDynpro and UI5 and proposes developing a hobby project to generate UI5 element classes that could render WebDynpro views instead of the standard elements.