Discovery Just Set Up a Starfleet Academy Spinoff?

Discovery Just Set Up a Starfleet Academy Spinoff?
The fourth episode of Star Trek: Discovery 's fourth season bid farewell to one of the show's main characters.
(SPOILERS follow for the Star Trek: Discovery episode "All Is Possible.") Sylvia Tilly has struggled with her role as a Starfleet officer for weeks.
In "All Is Possible," she realized that she might not be in Starfleet for the right reasons.
The realization came after Tilly and Adira joined a group of Starfleet cadets on what was supposed to be a routine training mission.
Things went very wrong.
Tilly managed to keep the group alive on a hostile planet long enough for rescue.
Upon returning to Starfleet headquarters, Tilly received an offer from Kovich to teach at Starfleet Academy.
After a tearful farewell, Tilly left Discovery for her new position.
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We know that Mary Wiseman hasn't exited Discovery altogether.