That would be an amazing world. What do regulators think of the "platform approval" concept, though? I can't imagine that this kind of approval currently exists under most governments' regulatory regimes for vaccines.
I think over the next 10 years governments, scientists, and businesses are going to be asking themselves how they can be prepared for the next pandemic. This will make governments more likely to approve a fast track for the mRNA platform, and popular support more likely to sway in favor of this.
If we had generic facilities that could produce any mRNA vaccines, and an mRNA vaccine approval process that takes 30 days then we could have had covid vaccines ready to go before March 2020, and those whole story looks very different.
My understanding is that this, or something like it, is already done for flu vaccines; that's exactly how they're able to release updated versions each year.