Huawei phones running EMUI 11 will be upgreadable to HarmonyOS - Android

Huawei recently unveiled the second version of its HarmonyOS operating system and announced plans to pre-install the software on new smartphones starting as early as next year.

Now, the Shenzhen-based company has clarified its software strategy for existing Android products.
Huawei will offer HarmonyOS to existing customers
Speaking to following the Huawei Developer Conference yesterday, a representative of the company confirmed that devices running the new Android 10-based EMUI 11 software will be “eligible for upgrade to HarmonyOS in the future.”

The wording suggests ...