All of your questions have already been answered.
1- No, they call the current online a "free trial period" so the service will be as it is now.
Thats not a straight answer. Thats a vague "things might change in the future but for now this is all you get"
Thats just embarrassing. Their social implementation is god awful currently.
3- They have stated they have no plans for a virtual console and say the Switch online games along with the standalone mini consoles are their replacement for it.
I haven't seen anything from Nintendo saying that they will just be releasing "mini" versions of classic console and thats an utterly **** way of making your back catalogue available. I don't want 6 small consoles sitting around that I have limited games on that I can't choose. Why has the Switch done so well? In a huge part its because its an always on, portable games console that you can take with you and play games properly on the go or on the TV. Giving us a load of little consoles for old games is just a cynical cash grab. The more recent the consoles get, the more costly making a mini version of them would be. Gamecube with 4 proper controllers? Wonder how much that will be.
All I can see them saying is that there will be no "virtual console" in the same way there was on the old consoles. They haven't said it won't be under another name.
4- They have added a featured section and they are working on updating how the store works.
How about a crap filter. How about rankings, ratings and reviews. How about instead of aiming for something ridiculous like 40 new games a week or whatever they said recently they spend some time and effort to make the store better.
Cheers Nintendo, way to support your customers with a console that is portable so could be lost quite easily.
6- They haven't commented on this one to my knowledge, but new Switches are currently not hack-able and the older ones are getting banned so the cheating should decrease with time.
Thought the new ones had a vulnerability too.
I'm not supporting the online service by the way, but the answers to your questions are out there.
Regarding the OS, the only features I would like are:
1- To be able to keep all my games up to date automatically, and not just the last 6 that I played most recently.
2- Folders
I would like to see themes, folders, auto updates, better notifications, proper messaging and friends system, netflix. Simple stuff that every modern console has.