They made 4 albums that were in the same genre, then they branched out with the black album which was good, it showed versatility. Then they tried to branch out even farther and call all the shots, well, james at least, and that was bad. There are some great songs like Fuel, No leaf clover etc, but overall the past few cds sucked.
I think it would be good if they went back to thrash, as long as they get a lil more creative, and kirk doesn't use the same damn scales. Theres more than just the pentatonic scale, and dorian. He did surprise with that phrygian dominant scale in Wherever I may roam.
So, we shall see