That is a good , balanced, and leisurely plan. The way that you have set up a heavy concentration on the Jungfrau region, with quick checks of a couple of other places is the kind of plan that I would do for myself.
However, all visits to the high Alps are seasonal. And, between seasons....November, for example, many services are closed for holidays or maintenance.
When do you plan to go?
You'll have lots of flexibility in the Jungfrau region, which is a good thing, since a visit to the Jungfraujoch should only be done on a clear day.
Interlaken gives you easy access to the rest of Switzerland by rail, but it is not much of a tourist destination in its own right. For a real Alpine atmosphere and spectacular scenery, you might enjoy staying closer to the Jungfrau in one of the nearby villages such as Mürren, Wengen, Grindelwald, Lauterbrunnen... I like Wengen.
You may find this interesting:
I'm curious about day 5. How will you get to the Aletsch Glacier?
Your day in Luzern will have time for more than the two items that you mention.
If you are interested in history, you would probably enjoy the Bourbaki Panorama, which is quite close to the Lion Monument (das Löwendenkmal).
Regarding the Rhine Falls- this link may be helpful: