Progression Status changed to Program Status?

Yes, that is the new change(update) and totally makes sense plus there is add-on feature to define success too.
Pretty flexible!

The What's New in the May 2013 Release help article describes this and other changes.

I'm glad I'm not the only one that missed that part of the release! Guess I was too distracted by being able to add calendar files to my landing pages! :)

We didn't mention this in the email release communication that went out b/c it was a last minute addition in preparation for the release of the Customer Engagement Module in June.  I'm sorry if you were confused or caught off guard, but we do have information in the community article as Elliott stated.

Progression takes longer to type than Program anyway ;)

I think it was a very logical change to make; very happy about it!

It's kind of logic, but would be nice to update the wordings in the help articles and sample events.