From the G4 website:

LucasArts' two-pronged attempt to revitalize their classics with The Secret of Monkey Island: Special Edition and Tales of Monkey Island appears to be a success. As part of a follow-up interview with LucasArts president Darrel Rodriguez about plans for the months ahead, I asked Rodriguez for thoughts on a return of the company's lauded X-Wing and Tie Fighter flight sim series.

His answer?

"We don’t have any announcements now, but stay tuned," said Rodriguez. "We will soon....."

By the way, that's his number of dots, not mine. We conducted the interview over e-mail. Five dots is far more mysterious than three dots, so I'm willing to bet I'm onto something here.
Whether it's a full-on remake ala The Secret of Monkey Island: Special Edition or an addition to the company's growing Steam lineup…well, who cares? Either one would be the first acknowledgement of a major part of LucasArts' legacy in a long, long time.

The last major release in the series was X-Wing vs. Tie Fighter X-Wing Alliance. I missed that one.

Thanks to Daniel (deathstar1000) for the heads up! We can only hope that this means we'll be seeing another X-wing or TIE Fighter simulator in the near future. Those games were simply stunning!