+John Kuntharayil +Czar Dixon
KitKat is not going to support old devices without DRIVERS. The hardware acceleration of Android 4.x is very different from how it was implemented in 2.3 and below.
KitKat's ability to scale better on low end specs only affects future low end phones that ship with KitKat. It will not magically start working on old devices. As we all know, Android runs quite poorly on devices with 512 MB RAM, compared to WP and iOS. KitKat will fix that.
If your device did not even support ICS, I'm 99% sure KitKat won't come to it, not even through CM. You could possibly install some hackfest build without hardware acceleration, but that doesn't really count.