Here's what I hope for from the launch:
* iPad 3 (goes without saying ) - LTE and retina display, anything else is a bonus
* Apple TV 3 - 1080p support (possibly app support, but I wouldn't expect it)
* 1080p iTMS content - goes nicely with the new hardware
* Lossless/HD Audio - possibly MPEG4-SLS to allow for low bitrate streaming.
If it had app support, I'd tie a Benjamin and my ATV2 to a brick, throw it through an apple store window the night before they are available and take one. Kill 3 birds w/ one stone... pay for it, get a new one before anyone else, and also give them my old atv2 for their recycle program