Comment by NitpickLawyer

It is confirmed they'll attempt it, hopefully we also get to see it on the broadcast.

> The Starship upper stage will target multiple in-space and reentry objectives, including the deployment of 22 Starlink simulators, similar in size to next-generation Starlink satellites. The last two satellites deployed will scan Starship’s heat shield and transmit imagery down to operators to test methods of analyzing Starship’s heat shield readiness for return to launch site on future missions. Several tiles on Starship have been painted white to simulate missing tiles and serve as imaging targets in the test. The Starlink simulators will be on the same suborbital trajectory as Starship.

This is from the dedicated flight 12 page, not this article. https://www.spacex.com/launches/starship-flight-12