I wouldn't bother. Nothing against the Kzinti, but the episode was just a remake of DS9's "The Abandoned"
Well, having watched “The Abandoned” , the “Kilkenny Cats” story it could be adapted to SNW without it being a rehash.
To refresh you memory of “The Abandoned”, the DS9 episode, the child was found among wreckage of a vessel that was sold to Quark. Over the course of the episode, we learn that the Jem’Hadar child was a genetic killing machine altered by the Founders and was to be sent to a Federation starbase to be examined by specialists. At the end of the episode, the Jem'Hadar child was allowed to return to the Gamma Quadrant by Odo.
Here, it could be adapted where a badly damaged Kzinti police vessel was located outside Denobulan space after Enterprise had just broken orbit from there. The Enterprise crew found a pair of Kzinti children aboard in the Kzinti crew quarters. The crew discovers that Kziniti children are very aggressive as their culture requires it, and Archer has them looked after on the damaged Kzinti ship because the Kzinti is too aggressive and dangerous to interact with his crew, including Porthos. And Enterprise is on a rendezvous course with a Vulcan ship to take the children back to Kzinti space, as the Treaty of Sirius prevents Earth ships from entering their space.
Maybe this Kzinti police vessel was badly damaged by the same unknown ship configurations with boridium signatures (i.e. Romulan) that have been attacking freighters that are a part of the Coalition of Planets for the past few months. And despite the conflict that Kzinti and Earth had with each other in the past, they found common ground due to the growing Romulan threat.
There could be various short logs by various crew members detailing the events.
Sato: “I could have accepted a promotion by transferring to the NX-03 Constellation, or accepted a UESPA post on Starbase One in the Algeron sector once it opens later this year. Instead, I stayed out of loyalty to Captain Archer to interact with an aggressive, warlike, and frankly, sexist species in the Kzinti. Although it’s led to a bonding experience with T’Pol.”
Mayweather. “Due to being the only one on the ship with any practical real world experience with the Kzinti, as the rest of the crew have been taught theoretical encounters, I have been relied on to an unusual degree by the crew. It still wont lead to a promotion to lieutenant, as Captain Archer said that Admiral Gardner would consider proming both Hoshi and me to be proof of nepotism around the captian, which is nonsense. I think its just Admiral Gardner still being a bit upset being passed over for Archer to command Enterprise.”
Reed: “Thanks to our Kzinti friends, I’m relaying data on the Romulan attack on the Kzinti police vessel to Starfleet Intelligence. Shran is doing the same with the Imperial Guard. I wish Starfleet would take the Romulan threat more seriously. This incident just adds to rumors of a war breaking out soon between the Coalition of Planets and the Romulans”
And all of the above is the backstory, used for the main story in SNW, which would be dealing this the same Kzinti children, now elders in Pike’s era.
Crossover is not the correct word, since that would require appearances from the ENT cast and rebuilding set, which isn’t necessary at all here. It would be more akin to when Janeway read the logs of Captain Sulu and Captain Picard to gain insight on a problem facing her in an episode. Except this time its Pike, Una and Spock reading the logs of Archer, Reed, Sato, Mayweather, and the others. Picard did not need to make an appearance on VOY in order for Janeway to read his thoughts on the Borg when trying to make a decision as to whether she should help the Borg or not. Not sure why Pike, Una and Spock would need Archer et al in person for the Kzinti unless it’s a TCW story.
And if there are still concerns that this is still a rehash of DS9, its worth noting that there are connections to DS9 in SNW anyways. Since Pike hold medals in the Carrington Award – an award associated with medicine, according to Bashir, although like the Nobel Prize, its possible that it could be associated with more than one field - and the Legate Crest of Valor, suggesting a past run in with Cardassians. At least this “Kilkenny Cats” story would be a fresh take on a story not told in nearly 30 years, since it told from the perspective of a century later after the events happened. And SNW would be better served to learn the lesson from Disco and be a sequel to Enterprise, Discovery and Short Treks. Instead of being a TOS prequel.
I concede if there’s no interest from the studio. Or the studio has better ideas in store. But still, its free, and they don’t even have to build any sets from the ENT era and bring the cast back for guest roles. Sorry if I don’t get it. Since this
is moving on from Enterprise, by taking a story meant for the show's 5th season and adapting it to a current era show. Basically, a potentially satisfying closure and a more respectful send off to the series, one which TATV did not offer. And one that has a direct connection to them, which serves an an examples of the culmination or consequence oft heir adventures.