During an afternoon investor conference call to report its 2008 fiscal earnings, THQ announced that it is working on a brand-new wrestling property for the Xbox 360 and PlayStation 3.

It’s called WWE Legends of WrestleMania, it’ll star former Superstars, and it’s in addition to the WWE SmackDown vs. RAW franchise. Details are still a bit hazy at this point in time, but a THQ press release says the game will arrive in March 2009 to coincide with WrestleMania 25, in Houston, Texas.

"We have generated significant year-over-year growth in key global territories with WWE-licensed videogames, including tremendous success with the WWE SmackDown vs. RAW franchise," said Peter Matiss, vice president, global brand management, THQ. "The development capabilities afforded by next generation hardware, combined with our established history and deep understanding of fighting videogames, allow us to leverage the strength of the WWE brand to further extend our leadership in the fighting videogame genre and bring this new property to market."

We’ll have more for you whenever it’s formally announced.