There's really nothing you can do at the moment. Newer versions of the intel driver require kernel modesetting, which has not been ported to FreeBSD. In fact, the current state of the intel driver in FreeBSD is pretty lousy, and the fact that a newer version is not available, and that the current versiokn doesn't work with a newer version of Xorg is one of the primary reasons that Xorg has not been updated in ports.
It's very possible that the next Xorg update in ports will be forcing intel users to use the vesa driver.
Adam