Should f20 kernels work on f19 right now?

[Bruno Wolff III]

3.11.0-0.rc2.git1.2.fc20.i686+PAE (rawhide-nodebug) boots just fine, but the git2 and git3 kernels don't.
Instead of switching to smaller text during the boot process it switches to larger text and then boot
hangs pretty early in the boot process. (Before being prompted for the luks password.) Characters are
echoed to the screen and C-A-Del elicits a response (though it doesn't shutdown).
The same kernels work on rawhide. (Though I am having X problems on rawhide right now, this doesn't
seem to be kernel related.)