Wait for new Macbook Pro?

I know much of the speculation of the new Macbook Pro is that it will be lighter, faster, brighter... but how will this impact the performance of FCPX? This is my first laptop purchase... and I'm not a tech guy in any shape or form. I just want a system that is productive. Reason being: my MacPro (desktop) with FCP6.6 is aging and I cannot afford to go down that 7k road again. With the horrible reviews of FCPX, I purchased a Dell XPS 17 laptop last week to give me mobility and freedom from FCP. I've churned a project or two in Adobe PP... but unfortunately, it’s not going to work. The performance of this setup is far too slow and the basic functionality of PP seems years behind FCP. So, is the 2012 Macbook Pro worth the wait, or should I just buy one now? And if now, what specs do I need; Memory, RAID, Video Card, Etc? The system requirements on Adobe PP should be deleted/updated... very misleading. I have 8gb mem, 3gb video card, 7200rpm RAID... and it's terribly slow. A user form with pros such as you is proving to be a better resource for unbiased real-world advice.