The thing about all this rethinking of trip alternatives is that it's slightly premature to be scrambling to salvage what you have now when it's smoke, not fire, in pretty much the vast, vast, vast majority of YNP. You're going all over the place in what you're considering as options, but there's smoke in all those places too. Like a lot. Like if it's east of the Ferguson Fire, it's smokey. So what you're doing is not trying to get around hiking in burned/burning areas, you're just trying to avoid really shitty air quality. You're going to end up in LA and the Sierras in about 9 or 10 days. OK, there you are. One way or another, you get this far, you're going to have to wing it on the ground or stay with what you have. Unfortunate timing, maybes all across the board, but you're trying to hit a moving target when nobody knows what that target is even going to be in terms of smoke from one fire, many fires, new fires, other fires, etc. You go some of these places, you're going to get tons of other people also second guessing things, hot temperatures, still smoke, and altitudes or climbs to get to where you're going that are going to wipe you out a lot faster than what I happen to think is going to end up being not as bad in a week or so as it is right now. But yep, you're winging it. Get here, see where things stand, adjust on-the-fly. Unless you head up 395, you're going to have to come through the park anyhow from somewhere or another anyhow. You'll be there, see what's up. I'm betting that you end up in Yosemite and have a great time, as planned, and I am not generally an optimist. You now have the best my two cents has to offer.
Keep apprised of the conditions shown on the webcams. They tell the story.
https://www.nps.gov/yose/learn/photosmu ... ebcams.htm