The talk was not about changing the definition but rather a deletion of the retract time requirement for the commercial - I believe the term was , "advanced IFR instruction" (to apply to glass cockpits) as a substitution. And if memory serves it was proposed as a ten hour requirement. As you know it was rejected. Until the FAA approves any such simulated box it's a training tool only and you've got to resort to the ole' 172RG or Arrow.