Microsoft may also be looking to bring Xbox chip development in-house, which Tremblay can help enable, Olds said. The company has had problems with design partner IBM in developing chips for the current Xbox 360 gaming console.

"It worked out well IBM and Microsoft, but it wasn't without fits and starts and delay," Olds said.

Analysts agreed that Tremblay's role will be across multiple projects, as he is too talented to be stuck on a single project.

"There does not have to be some master plan to which he has to be vital. It could be that they hired some person who is talented and decided to snap him up," Brookwood said.