From Cultured Code's Blog earlier this week . . .
For a little over a year now, we’ve been working on Things 3, which will be available for the Mac, iPhone, and iPad. It introduces a fresh new visual style, a revised user interface, more structure for your lists, and an array of great new features that are designed to make you more productive. We’ve revisited many areas of the app that have been neglected in the past, and renovated much of our codebase. It’s the most ambitious update we’ve ever undertaken.
http://culturedcode.com/things/blog/
It will be interesting to see which comes first, OmniFocus 2.0 or Things 3.0!
Personally, I'm not going to hold my breath on either one, but I would love to be surprised by either one.