Consumer-Ultra-Low-Voltage (CULV) Ivy Bridge processors are arriving in the market soon, and are expected to give Ultrabooks a significant performance boost (with Intel HD 4000 graphics) over the current batch of Ultrabooks running Sandy Bridge (Intel HD 3000 graphics) processors.
However, simply switching older processors for newer ones and calling it a "refresh" simply won't do. According to The Verge, Taiwanese PC manufacturers ASUS will be upgrading their Zenbook line of products with some serious hardware changes as well.
One of the more significant changes would be the 1600 by 900 pixels screen that current 13-inch Zenbooks come with. The new Zenbooks, the 13.3-inch Zenbook UX31A and 11.6-inch Zenbook UX21A, will come with a Full-HD (1920 by 1080 pixels resolution) IPS display as well as matte screen options.
Of course if you'd prefer your Ivy Bridge Ultrabooks with lower (1600 by 900 pixels for 13-inch, 1366 by 768 pixels for 11-inch) resolution LCD screens, those options are still available too. Other significant changes include the usage of lower voltage 1600MHz DDR3L RAM (1.35V instead of 1.5V), a back-lit keyboard with longer key travel, and Intel's Wireless Display (WiDi) technology.
While there isn't any word on whether there'll be any aesthetic improvements, we don't expect the handsome Zenbooks to change very much since the newer Zenbooks will still carry similar dimensions. ASUS hasn't announced any release dates, but these machines are expect to appear in mid 2012 when surplus CULV Sandy Bridge processors are sold off.
Source: The Verge