As of yet, Metallica have not yet given a title to their upcoming ninth studio album. I've read a few articles, and it's supposed to be released at around mid 2008.

Wikipedia:

The album's style has been described as more progressive and, at times, melodic, as it features many guitar solos. It has been referred to as the "missing link" between 1988's ...And Justice for All and 1991's Metallica.

St. Anger was not a very pleasing album. In fact, they lost half their fanbase after they sued Napster, and did some other homo things. I think they're trying to make up for it in this album. They'll probably go back to the gym and buff up for their tours.

Does anyone have any useful information they'd like to share, regarding Metallica or their upcoming album?

Megadeth are better!