I have stated this many times in the past and I’ll happily repeat it: The long-term goal of the transition to the so-called Distribution System is to enable players in AirlineSim to run different business models, including “proper” low-cost carriers. For this to work, a lot of individual components need to be refined and tuned, including but of course not limited to service profiles.
So none of the ideas here are new and they’re pretty much all on the roadmap in one way or another. So to get a full picture, I suggest to skim the roadmap overview. Ironically, “Ancillary Revenue” is one of the features that only has a note on there, no fleshed-out roadmap item. Mostly because it is so tightly related with service profiles and their roadmap item is effectively one for ideation/concept.