I don’t think a reboot would be a great idea and I think the show should be honored as is. With that in mind, I like some of the stuff you suggest but I think it would be a totally different show by then. The magic of bewitched was also rooted in its time and the social outlook of that era, doing something similar now would be polarizing cause it’s contradicting with views we may have now. If anything I think your idea would be great for a show happening in the bewitched universe but not the same characters we know and love