Jony Ive hints at new materials being used in upcoming products

Now I'm getting excited. Sapphire and liquid metal perhaps?
http://bits.blogs.nytimes.com/2014/06/16/jonathan-ive-on-apples-design-process-and-product-philosophy/

"I would love to talk about future stuff - they're materials we haven't worked in before," Ive said. "I've been working on this stuff for a few years now. Tim is fundamentally involved in pushing into these new areas and into these materials."