So the new GoPro 3+ Black edition was just announced (available right now).
HERO3+ Black Edition | Wi-Fi enabled | Most Advanced HD GoPro Ever
Basically it's the old GoPro 3, but lighter, smaller and with longer battery life (30% longer) along with the typical upgrades such as better sound and picture quality.
It seems they accomplished the size/weight changes by fitting a smaller waterproof case around the same sized GoPro while updating the internals.
Looks interesting, I'll definitely be picking one up, but I just hope their software isn't buggy like last year's GoPro release.