I think "Lower Decks" would suit our salamanders better.
Well, now, I love Lower Decks. I love it. But, that's not the place for doubling down on the salamanders, in my view.
Caption at the end of TMP says "The human adventure is just beginning" and they're a hyper-evolved set o' humans. In DISCO they've had a millennium to breed, grow and potentially encounter other life. Perhaps help improve their technology. Perhaps build their own. And then travel the 70 odd years to their point of origin.
I mean, it's never, ever going to happen. If only because, to properly double down on it, they'd have to be salamanders, not bipeds with funny foreheads (which would be a de-evolution, right?). Which means puppets or really good, budget killing CGI.
But, they're the next step in evolution and the CSA should have been after Janeway and Paris about them.
I'm also thinking in the sense of Space Seed, "It will be interesting to see what grows from the seed we planted here."