Malik,
You are absolutely correct: The PMP Exam is changing on July 31st and we will be updating The PM PrepCast in the coming months.
My recommendation to you right now is quite simple:
- Study with the current PM PrepCast and take the exam BEFORE July 31st, 2013
I say this because all your study materials (PMBOK, PMP exam prep book, exam simulators, Prepcast, etc.) are based on PMBOK Guide fourth edition. You can study with these if you take the exam before the changeover. If you cannot take the exam before then, you will have to buy new books and study materials, so that you prepare with the correct materials.
And yes: We will offer an upgrade to our customers, so that they can purchase our updated products with a substantial discount.