There has newer bean any point of getting higher than 720p for 2d movies. Many people dont reliase how much space uncompressed hd video takes up.

Products getting delaied several years is nothing unusial for prepros. The anthem d2v 3d should have bean released 2010 and is currently being tested to gey the hdmi 1.4a certification. The benefit with hdmi 1.4a over 1.3 is
-3d
-ethetnet channel
-audio return channel
-2k*4k at 24hz
So the only real benefit with version 1.4 is 3d which would need hdmi split otherwise, i am personally not interested in 3d. I doubt hdmi 1.4a is worth the extra time it took to implement in these 2 cases.