Regarding the episode order, specifically with Domino Squad - I’m a little hesitant to remove too much of Clone Cadets. Mainly because that’s our earliest introduction of these guys, and I worry that the audience won’t care as much if too much content with Fives and Echo (and even Hevy) is removed. That being said, there’s definitely a lot of fluff in that episode, and honestly, I fully believe in your ability to trim it down however you think works best.
ARC Troopers is a bit trickier though. You can definitely do a pretty safe time jump from Clone Cadets to Rookies, but ARC Troopers takes place further down the line. Fives and Echo are all “grown up,” and there’s definitely a “returning to school” vibe in the episode. It’s kind of like Episode 2.04 of Mandalorian - it’s a direct followup to Episode 1.08, but it takes place a good chunk of time later, so by spacing it out, the audience feels that time lapse better.
Therefore, my theoretical, highly radical episode order might go like:
Christophsis > Malevolence (to give Anakin and Ahsoka a bit more time together before they’re separated) > Domino Squad (Clone Cadets and Rookies) > Cloak of Darkness > Death Watch > ARC Troopers > Nightsisters
Also, personally, I don’t care for the idea of the very first shot of the entire series being Darth Maul. That’s such a significant reveal, and it doesn’t even come into play until much later, and we haven’t even met any Mandalorians yet. Tonally, it just…doesn’t work for me. However, I think that scene would work perfectly as an end-of-season stinger. Kind of like the Dark Saber in Mandalorian - if you know who the red horned guy is, it’s a great tease for things to come. If you don’t, it’s something to make you curious (rather than confused) for the next season.
But hey, you’re the boss! And like I said, I trust your instincts for these edits.