No, I disagree. I don't think Hillary is out of the picture. I think she may run again in 2020, and that Trump knows this. Why not? She is a year younger than Trump, IIRC, and people have been touting Biden, who is WAY older than either of them. Now that we know that gazumpteen Senators and Representatives are way up in their 80s, I guess age is no longer an issue! At least till age 90.
Hey, if Trump can plausibly run for a second term, Hillary could certainly run again. I think it's a possibility.
It's obvious that Hillary has health issues whether she admits it or not. She has also said she will not run again. Of course a lot of people say that, but I think she's had it. Lastly, Democrats are looking for someone new, someone that can attract young voters and minorities without alienating centralist and can appeal to voters concerned with the morals and integrity of the president.
Hillary simple has too much baggage, too many scandals and investigations, and too much hatred from the right. The only reason she got nominated was democrats firmly believed that American would never elect a slime ball like Trump. Obviously they were wrong and certainly won't make that mistake again.
I don't think she does have health issues -- and I watched all that footage, incl. her getting lifted into the van. She's not as vigorous as Trump, true, but who is?
I don't think the Dems HAVE anyone else. I don't think they can run Fauxcahontas. She's the same age as Hillary anyway, and talk about baggage!
So the smart thing to do if Trump is riding high, for instance in the middle of a war or just very popular, is to run the usual sacrificial lamb. Like Mitt Romney was. Did he really suppose PC-obsessed America would turn out THE FIRST BLACK PRESIDENT

? Hillary would make a plausible and good sacrificial lamb. She couldn't win, but they tried, they could say.
The only thing against that is that it's a rule in politics (No. 7?) that you cannot run for president (or really any office) more than twice. Twice is okay, but three times and you're Harold Stassen.