I'm still on the fence on whether this will be good change.
On one hand, I enjoy the CBT environment. No wheelbarrows of books, no proctors, no non-optional lunch break, and everything is provided to you in your own isolated cubicle. And we'll possibly be able to schedule any of the tests in whichever order and on whichever day of the year. No more taking Thursday / Friday off from work.
On the other hand, the format of the new exam is a bit questionable. Way too many pre-test questions for my liking, and taking four days off to do one exam is a bit much. And that's assuming you pass all four sessions the first time. Also, the SE exam benefits from having additional material. The laminated CodeMaster Design Guides are very helpful, for example.