Support for Fabricpool on Flashpool aggregate?

Hi,

Does anyone know if or when there will be support for using Fabricpool on Flash pool Aggregates?

From ONTAP 9 Documentation:
FabricPool supports the following aggregate types:

• On AFF systems, you can use only all flash (all SSD) aggregates for FabricPool.

  You cannot use Flash Pool aggregates (which contain both SSDs and HDDs).

• On FAS systems, you can use either all flash (all SSD) or HDD aggregates for FabricPool.
• On Cloud Volumes ONTAP and ONTAP Select, you can use either SSD or HDD aggregates for FabricPool.

Best Regards,

Kenneth