Planner Constraints in GCC frustrating (e.g., inability to convert basic plans to premium plans)

We have a GCC client that is growing frustrated by the constraints they continue to encounter with their Planner and Project Plan 3 licensing.

• Converting basic plans into premium plans isn't available for customers working from a GCC environment 
• Task history is currently not available for customers in GCC 

There are limited GCC/Planner items found in the roadmap. 

Can anyone direct me to any sort of update or forecast on functions such as these withing GCC?