False - the virus is mutating to more contagious strains - but NOT more deadly strains. And that is EXACTLY what happens in most pandemics. Furthermore, if history is a teacher of anything pandemic-related, the viruses tend to drift towards LESS deadly strains. From an evolutionary standpoint, that makes sense and is expected (killing off the hosts eventually kills you off as a virus).
I recall you calling me out and telling me I was full of it in February or March of 2020 when I predicted that COVID was going to hit rural areas hard and rural hospitals would be overwhelmed.
In this case I don't believe it is certain a more deadly version of the virus will emerge, but I think it is very possible. A disease like Ebola tends to burn itself out fairly quickly because the symptoms are very dramatic and people don't tend to get mild cases where they can run around contagious but functional. Because the symptoms of Ebola are dramatic, others tend to stay away even if they don't know that much about infectious diseases.
COVID has a long incubation period. It appears Delta's is down to about a week from up to 2 weeks, but that's still longish. It's also been proven that people are contagious during the time it is incubating. In areas where there are Ebola outbreaks, everybody believes it's real. That's not true with COVID. There are some areas of the world where the population in total takes it seriously, but that's not the case in the United States. There is a large minority in the US who either don't believe COVID is real, or believe some loony conspiracy theory about it that leads them to take risky behavior.
Additionally the progression of the disease with COVID typically has someone go into the ICU with little warning after being sick for a couple of weeks. Someone can think they are stable or even getting better and suddenly with little warning they are teetering on the edge of life. With a long period of mild illness, there is plenty of time to spread it to others before dying.
Here is a plausible super spreader scenario for a killer version of COVID. Even if the vaccine stops this variant. Someone is planning on driving from Tampa to Southern California. At their going away party they get infected with a new killer variant of COVID. Even if they take their time driving cross country, they will pass through the northern half of Florida, Alabama, Mississippi, Louisiana, and well into Texas before they even feel the first symptoms. That's the part of the country where COVID denial is highest and vaccination rates are lowest. They spread the killer variant at every gas station, every restaurant, and every hotel/motel they stayed in. If they visited friends or family along the way, they spread it there too.
Even if they are feeling a bit ill by west Texas, they push on through spreading it in New Mexico, Arizona, and into California. When they get to their destination they are getting seriously ill and end up in the hospital a day later to die of the new variant a month later. Meanwhile the new variant's offspring are taking hold throughout the entire southern half of the US. International travelers to places like Disney World in Orlando take it back to their home countries where it takes off. If the country is well vaccinated only breakthrough cases will crop up and the outbreak might be contained, but among the deliberately unvaccinated in the US it rips through that population like a bandsaw. It also has a devastating effect on countries with poor access to a good vaccine.
And that's a variant that the vaccines stop. It would be far worse with a variant that also evaded the vaccines.
That driving scenario is not that far fetched. A friend of my partner recently moved back here from the Tampa area (in May). A friend of hers who promised to handle everything with her move screwed up and her car sat there for a month (he went radio silence on her). Another friend of hers from Sarasota volunteered to drive the car from Sarasota to Portland for her. She took almost two weeks because she did some sightseeing, but ultimately it was cheaper and faster than having it shipped. Her friend was vaccinated and she went north in Mississippi on up to North Dakota and across the country on I-90 instead of I-10 through Texas, but someone carrying a killer variant of COVID on a similar trip would be a super spreader event over 3000 miles long.
Unlike my prediction that COVID was going to hit rural areas hard, I am not sure about how it will mutate. It is possible Delta is the worst we're going to see. However the progression of this disease thus far has been towards more dangerous variants rather than it becoming more benign. I have read concerns from epidemiologists about a possible variant that defeats vaccine immunity. The variant from South Africa (was it Beta? I don't remember) had some ability to get around existing immunity.
There are anecdotal accounts from hospital workers that Delta is more deadly than previous variants, but that has not been proven one way or the other yet. It is possible that is just an impression that will not be proven out.
We don't know enough yet. In another year we may be looking back on 2020 and 2021 as two bad years and things are looking up, or we may be looking at a new phase of the pandemic as bad or worse than before. Could go either way.