I realize that Office 2013 has not been released yet and is not due out for a few months yet. But I am wondering, after the release, what the delay will be on getting the exam information (such as the learning guides)? Will it be available at the same time, or will there be a delay of a few months?
In short, should I go ahead and study for the 2010 exams or should I wait and go for the 2013 exams?
So far it sounds like Office 2013 will be late in the first quarter of next year. Based upon typical release cycles for Office certification exams, you would generally start seeing them release 3-6 months after the applications release. I would suggest working on the Office 2010 exams for now. You may find that once you pass these, the Office 2013 exams won't be too difficult, since you will just need to be concerned with what's new in the new versions of the products.
Good luck. Please let me know if you have other questions.