Android on pinephone

there will be android on pinephone ???

Pine64 will likely supply an Android SDK for the PinePhone, just like they have with all their other devices.

I don’t think it’s a “full-blown” android OS though.

The Link attached is for Manjaro App for Android device.
While your question is

Which is a different topic.
Pine64 does had Android installed on their first serve dev kits so they do have Android sdk as correctly said by @Strit

You can ask the same at Pine64 forum for a clear answer.

I hope this answers your question.

Anbox should come pre-bundled in the latest builds. This will allow you to run Android apps.