Aluminum Futures Should I Wait To Get A Aluminum Macbook?

Should i wait to get a Aluminum Macbook? - aluminum futures

I know that the Apple WWDC is 8-12 June and it is updated version of MacBook. I think it can increase the processing speed. My problem is that I want to go buy one and then later by a couple of weeks have improved. Are there any of you think that the MacBook update in the near future?

Thanks