When will iMac Fusion Drives Get APFS ?

Boy, you are a major complainer. These are not complaint, rant, or gripe forums. please don't use them that way. If you have a legitimate tech question to ask about Apple products, then just ask.

APFS will work with rotating drives and Fusion Drives in a future update of High Sierra according to Apple.

DanielDay wrote:

Mac OS with Fusion drives still can't convert to APFS file system. When can we expect this to happen?

It will happen next Tuesday, or maybe not, maybe never or maybe not. 🙂 Seriously though, it will happen when it happens which means when Apple releases it. We are all end users just like you so we are not privy to any information about Apples plans.

Only Apple know the answer to that.