Maybe it depends on Hassell. If he recovers and hits the way scouts rated him, then he will win an OF job from Thomas. Otherwise, the Nats OF next July would be Thomas, Crews, and Wood. And that assumes Wood moves quickly through Harrisburg and Rochester. Otherwise, the 2024 OF will start Nobody, and Nobody, and Nobody.
So, yes, maybe Trade Thomas for another teams top-5 prospect plus one of their next-tier prospects. Rizzo should listen. But that's not to guarantee that some team will offer enough to justify trading Thomas.
As a long-time Yankee fan, I like the idea of trading Candelario and Thomas to New York. As a third-generation Washington baseball fan, I want Thomas to stay until the Nats have someone to replace him.