i agree with gabeidx that ideally, Kagi would offer a single bundle subscription for all products AND individual subscriptions for each.
I personally think the "ultimate" plan should be the ultimate kagi plan. If the margins allow it, it should just include all the things (mail, translate, the ai stuff, and orion), it should in theory not be the same price as everything combined because not everyone will use every feature. There is also the point that in the case of Orion a recurring subscription is more valuable to kagi than a one time payment.