What do you want to hear in Linkin Park's next album? Do you want them to build on their new experimental sound, go back to their roots, or go in a whole new direction with their music? For more information on their current plans for a next album, watch Shinoda and Hahn's interview with Fuse: http://www.youtube.com/watch?v=WIGGv3Mcv4Y
go on with the old sy\tyle and mix something new in them.
What do I want to hear? Simple, whatever the band themselves feel is worth the time and effort. Listening to them long ehough has made it easy to be open minded when it comes to they're musical diversity.
I liked the direction they took with Living Things, a mixture of their old stuff mashed into the A Thousand Suns era. They should do more of that!