It is now official! Umbraco 5 has been iced.
Umbraco 5.2 will be the last release of the MVC version of the successful open source CMS, bringing to an end Umbraco's foray into the MVC realm. Further development on version 5 of Umbraco will be terminated.
Instead, development efforts will henceforth focus on the well-established Webforms based Umbraco 4, which is currently as version 4.7.2.
A roadmap for development on version 4 was shown, and this roadmap also includes incorporation, over time, of certain v5 elements back into the v4 branch.
However, whether we will at some point see an MVC port of version 4 remains to be seen.