A product owner has indicated there is strong customer interest in adding a new set...

Negotiate with the product owner to determine which functionality should be pushed out of the scope of the project.

Discuss with the team how this change in scope impacts development at the next retrospective to determine next steps.

Negotiate with the product owner to determine what might be removed from the backlog that is of similar size.

Add the functionality to the product backlog for inclusion once a change request is created and approved.