Panos S., we don't have plans to make Audiences available on legacy plans any time soon.
Our legacy plans were the right model for the data enrichment product. Now, we are expanding product surface to support end-to-end GTM infrastructure. That's a different type of product, which is why we developed the new pricing model. Audiences is the foundation of that infrastructure. The way we see it, we have to ship great products that make it worth your while to consider the modern plans. But the choice is yours.
As you said, we continue to honor our legacy pricing plans. We're also still actively investing in that product experience. For example, our last 2 launches (functions & Claygent builder) are available on both modern & legacy plans. All quality of life improvements also ship to all plans.