[puma1]

I don't know who you mean by "we", but generally users expect something new with a new OS, new hardware, or basically anything with the word "new" in front of it. Apple didn't announce IOS 7 by calling it the next IOS, they called it the new IOS.

[mixmastamyk]

There's plenty new. Completely new would be a large step backwards... see Unity, Windows 8.