This has been an interesting thread to read. ford91exploder - you remind me a lot of a former member on these DIS boards - Another Voice - who used to post (probably like 10 years ago?) with similar broad ideas to what you're saying. Not sure if those much older posts are archived, but you'd probably find it interesting to read AV's posts from a while back.
<I cut out a big long commentary here about how different people will see things differently...>
I guess the biggest question is really whether Disney is sacrificing long-term quality for short-term gain, and either cutting or upcharging to an extent that the "Disney experience" is lost. I think I and many others are willing to cut them a lot of slack in the short term as we are coming out of the pandemic, and it's a little hard for me to say that anything they are doing at this point is symptomatic of a longer-term issue. But, we were seeing some worrying signs even prior to the pandemic, and if we are looking back a year from now with a list of lots of stuff missing (or being newly upcharged for) and nothing equivalent or better to take its place, that's a problem.
Back to the theme of the thread, I think I'd expect the first things to come back to be more about capacity issues to the extent they can staff them: full restaurants, full theaters, etc. Then next would be the things people "expect" from a Disney trip: fireworks, full shows (including something at night), etc. I even think that character interactions are likely to come back sooner than many people expect. Those are the things that if they don't return, a lot of people are going to feel they've missed out on core aspects of the trip. Housekeeping services I could see going either way, and it will likely mirror national trends more than anything (if major chains stop daily housekeeping long-term, I bet Disney does, also, and vice-versa). I think the real trick will be to see how many of the secondary amenities come back and in what form: these are things like fastpasses, the trams/transportation, secondary activities, etc.