There are already a few different strains (or to better put it scientifically, there's been at least 2 or 3 different types that have been isolated by doctors in the last few months, this virus is actually another, milder type of SARS overall I believe), and its thought the one circulating in Europe and maybe Canada is the one that's more virulent.
But this I think can get involved in what I'd be concerned about in the long, very long term. Watch the next year or so... We'll likely peak with the coronavirus types that have been affecting us in the next couple months overall as a world. Then we'll start to taper down...at some point within a year we'll have a vaccine that's effective, and the people that are riskier will use it. Over the coming years, people will slowly start to forget some of the things that happened in 2020, outside of some patting on the back of the actions taken to calm things down.
Then 10 years from now, watch another version of SARS emerge from China that is more contagious than the one from 2003 and acts a lot like the SARS from 2003, which was more dangerous and I believe affected all ages. It's a little tin foil hatish, but we can't rule that happening out.