revising itinerary Cordoba, Granada, Malaga, Ronda, Seville

The Caminito is touted as the most dangerous trail in the world. Yeh, sounds a little scary.
I am in the same areas slightly ahead of you. I anticipate tourists, but November is considered 'shoulder' season. How are you getting to Ronda? If driving, I would stay in two white towns and do some walking in the hills in the area. If by bus, I might overnight in Antequera and Ronda or two nights in Malaga. I suspect with the influx of energy put into the arts and tourism in Malaga, you could easily spend five days there. Many miss it, but you have to decide which has more appeal. If you have an interest in Roman history in Spain, Malaga has Roman sites.
Consider that of your three days in Seville, one is Sunday which means early closing, and another is Monday which means multiple closures. Again, depending on interests, you might prefer to do one night Rondaand an extra night in Seville
Have you mentioned what your interests are? I think you mentioned not wanting to fit in too many places. Personally, I have four nights in Granada and five in Seville with no white villages.

I'm pretty sure the Caminito del Rey has been rebuilt and made more safe. Google should reveal whether I'm correct or not. But photos indicate it is not for folks who have any trouble at all with heights.

I would keep it easy on logistics with 2 nights in Ronda, rather than the two single night stays.

November
6..arrive Seville
6..Train to Cordoba - 2 nites
8..Train/bus to Granada - 2 nites
10..Drive (??) to Ronda - 2 nites
12..Drive (??) to Seville - 3 nites
15..leave Seville

I like David's itinerary. I enjoyed Malaga, but not as much as your other cities. If you are willing to rent a car - pick it up when you lleave Granada, spend 2 nights in Ronda, spend 1/2 day seeing the sights there and the rest seeing the pueblos blancos and return the car in Sevilla. Without a car, I'd consider only 1 night in Ronda - IF the bus/train schedules allow for several daytime hours for sightseeing there and adding the extra night to Sevilla.

I think the traject you've set is pretty cool, you'll get to see most of the important cities in Andalusia. However, with the number of days per city that you've set you may not be able to see all of the cities especially for Grenada and Cordoba, I think two nights in each is not that much. I think you should skip Ronda for this time and add a night in Grenada and a night in Cordoba. You may want to check the following link, I'm sure it will be of great help to you.
https://tripblan.com/trip/my-travel-guide-to-rediscover-al-andalus-in-two-weeks

Best of luck and enjoy your time there!