Updated, high definition versions of ZOE1 and ZOE2 have been confirmed to be coming to the PlayStation 3 & Xbox 360. Shortly after the KONAMI Pre-E3 conference began, this image surfaced on the internet:
Later, as the conference continued streaming to the internet, during an interview with Hideo Kojima, both Zone of the Enders and its sequel, The 2nd Runner, were confirmed to be in development (alongside updated HD versions of Metal Gear Solid 2, 3, and Peace Walker).
The PlayStation 3 version in particular, like with the MGS HD Collection, will feature "transfarring" -- the ability to continue a PS3 game on a portable handheld -- indicating that you may be able to enjoy Zone of the Enders on the go.
The ZOE HD Collection is slated for a 2012 release.