I personally hope that Tech will turn up alive and the entire Bad Batch and the force-sensitive children will either be preserved in some kind of stasis by Mistress Nala Se and/or taken into hiding by Assaj Ventress or Emerie. The first time we hear about Project Necromancer was in Mandalorian season 3. We hear about it again here and it has something to do with Omega. We also learn that Boba Fett's true name is "Alpha". It would be strange if Boba and Omega never met face to face given this connection. I think that Omega and The rest of The Bad Batch will come out of stasis somehow in The Book of Boba Fett Season 2. Fennec Shand is with Boba Fett and has a connection to The Bad Batch and Omega. Practically speaking it would be a major fan disappointment if we never see the Bad Batch in Live action or meeting with Boba Fett, Ashoka, Mando and the rest of the gang to fight the imperial remanent. I understand this sounds like wishful thinking but I am really hoping for it.