Xfce 4.11, the development release in the journey towards the next stable 4.12, was released recently. I have built some Xfce 4.11 components for Fedora 20 and rawhide in COPR. It is not complete yet - xfce4-session is missing for one. I have not seen any problems in my test virtual machines or on my laptop - but that's no assurance. For those who want to try, repository links are below. But first,
** Do not use bugzilla for reporting bugs for this COPR package **
Here is the link to my Xfce - 4.11 repo - https://copr.fedoraproject.org/coprs/nonamedotc/xfce411/
Although, page shows Fedora 19 repo, do NOT try these packages on Fedora 19.
Good luck! :)