Apparently Daily Radar goofed, and gave out some information they shouldn't have. Here's the p5op from Matt:

There won't be a new game announced at E3.

There WILL be demos, behind closed doors to a handpicked crowd of industry and media elites, of a new game. But it won't be shown to the world at large, or even officially announced, for some time yet.

-Matt

A pox on Daily Radar! A pox on their house for gettcng our hopes up! Well, this still leaves us to wonder what Glue the Moose is working on, and we'll have to see how long it takes to find out about this secret project.