30,000 geekbench score... ok, that's pretty hopeful, but it would be cool to jump up 50% after waiting 3 years for an update. If the next MacPro would hit that speed, it would be a machine to last a decade unless you are doing ultra-high processing for video/animations.
I am semi-planning to buy the next update. It's on the fence because I wonder what is coming. If the next Pro has Thunderbolt and USB3, I am almost there. If it has two processors and costs no more than current models, I am a hair from buying.
The case design doesn't really bother me. If they keep this design, no prob, but if they trim it down 33% ... boffo. Even if they ditch the optical interior space, I have no problem because I can use the old tower here via wireless for the few times I use optical through the year. The kind of compacting and miniaturization going on in all other Apples is unseen in the Pro; it would be welcome to reduce the motherboard down into a postcard or two.
If I don't buy the 2013 Pro, I will almost certainly buy the 2015/16 Pro. Haswell Pros should be cooking. However, my 1,1 dual processor is still quite good and should be good through 2014.