What is your next step after PMP?

Regardless of the various disciplines you pursue in your career, make sure you have a Masters -- MBA or MS or some other degree of higher learning.

Whatever you decide to do, your current position has to ADD to your resume. You have to be able to show a path of improvement for both the current/prospective employer as well as yourself. Become the best you can in what you are doing now which later you can use as a springboard to your next endeavor.

What you want to pursue next (whenever that be), should point you to what makes sense as far as another certification.