According to Head For Points..

You can keep earning Avios and BA tier points on Emirates as the Qantas JV is extended.

The reason for this is that Emirates has a codeshare deal on many routes with Qantas.

Qantas is the only oneworld airline where you earn Avios and BA tier points if you travel on a codeshare flight operated by a non-oneworld airline.

On Monday, Emirates and Qantas announced that they have extended their codeshare deal for another five years – click here to read more. This means that you can continue earning Avios on selected Emirates flights until at least March 2028.