A current SUBSCRIPTION has access to the AVID complete bundle, HEAT and UVI Falcon AVID Edition. Once a subsription expires, these "timed" licenses expire on your iLok unless renewed.
The AVID Complete Plugin Bundle, HEAT + UVI Falcon AVID Edition cost separately for use with a perpetual license. Even if on a current support plan.
But once purchased, these plugin licenses will not expire and can be used on an unlimited basis.
I realize others have already clarified things on Perps & Subs. I just felt like doing something in the community