Yeah, that sounds great. I don’t see a huge problem with the earlier Mandalore episodes being mostly political. It is a slow build-up, but eventually it starts to deliver as it slowly but surely leads into the epic final arc. Maul (and thus Ventress) is absolutely crucial to Ahsoka’s story, even if she isn’t a prominent character every step of the way.

EDIT: Maybe if you want more Ahsoka, you could intercut the Nightsisters arc with A Friend In Need or something? Just throwing this out there, not sure if it would work.