Jon Ingham has written a great post on NOT using HR jargon when talking to the business.

There is a difference between HR terminology that we need to use between ourselves, because otherwise we are unable to effectively discuss important and often intangible elements of people management, and unnecessary jargon that we sometime mistakenly use with managers and employees - even when these involve the same words / terms.

The same is true in workforce planning of course.  Although we talk about the "no change future state", "environment scanning" and other jargon-esque terms, when referring to the business we should always use plain language and avoid jargon - it's just offputting.  As in all communication, the best language to use it the language of the person you want to hear the message - so use business language, not HR language!