Right now it's an arms race. Quantum computing is a long ways away from having any practical application yet. There are also people waaaaay smarter than me already researching quantum-proof cryptography. Eventually we WILL have to fork Bitcoin to new cryptographic standards, but I think we're at least 20 years away from that. The question is which will come first. It's entirely possible that quantum computing could break encryption for a decade or more. Especially dangerous during the early stages when quantum computing is practical, but not mainstream yet, so only governments and major tech firms have access to it.