Prepare to read the headline "mRNA vaccine trial for " a lot in the future. My guess is that they are going to produce mRNA versions of basically any vaccine (and then some) in the future. The nice thing about the technology seems to be that you only need to exchange the mRNA payload while the surrounding delivery method can be reused. That makes it not only a fast method to create a vaccine but a very convenient way…
One of the things that'll come out of this is that mRNA vaccines as miracle wonder drugs that cure everything are going to get huge amounts of attention, and media will reflect that. Especially if the Lyme, Malaria, and HIV vaccines prove successful. We are going to see mRNA vaccines as plot devices and MacGuffins in media for decades to come. It's going to get the same treatment radiation got in the '60s and '70s and genetic engineering got in the '90s and '00s. For example, it wouldn't surprise me if, the next time Marvel decides to make a new adaptation of Spider-Man, the spider will have been treated with mRNA instead of radiation (the original story) or gene therapy ('90s cartoon, '00s movies, maybe others).