I'm not going to mess with my macros until they make the change. Since they are changing the talent trees and other things, I'm sure that optimal rotations now aren't going to be optimal rotations when the new patch hits.

When it does, we'll all have some work to try to perfect things. Then again, I'm not really going to put much effort into optimizing castsequences at that point, either. Even rudimentary sequences will be more than good enough to quest to level 85. The level 85 castsequences will be the major thing to spend time optimizing. "Good enough" will work until then.

As for which DPS will be most effective in Cata with the /click nerf and 255 character limit, it is almost comical that the ones with the shortest ability names will probably be most effective. "Wrath" is much shorter and will allow a lot longer and more complex sequences than something like "Lightning Bolt".