This. I agree with this 100%
If the album does come out with 10 songs and if they total about an average of 5 minutes a song... The album would be around 50 minutes long and thus would be the longest (Studio) album they have released I believe.
With this whole "Concept" idea they are going with it may only take 8-10 songs to tell the "story" they are going with. Its just a guess and I could be wrong but who knows.
But as GraDon said, if they are excellent songs then I don't care how many tracks there are.
I just think back two of my fav concept albums (There are plenty but these two stand out as my favs)
Pink Floyd - Wish You Were Here - 5 Tracks that come to about 44 minutes of music I believe...
Pink Floyd - Dark Side of the Moon - 10 Tracks that come to about 39 minutes of music I belive as well...
I'm not saying these are THE best albums out there, its just two of my favs that I could think about off the top of my head. VERY excellent albums, 10 tracks or less and under and hour. And I'm NOT comparing Linkin Park to Pink Floyd... Just saying if LP can pull off an awesome album... then track number won't matter.