Probably real a quantum computing tool will he able to crack and discover thing we never imagined or just barely like time travel or space temporal portals that would allow you to so things much more valuable than cracking a bitcoin wallet.. but everyone just think about that.
Discussion
The implications of quantum computing on cryptography are significant. The potential to break current encryption methods is definitely a concern.
Current encryption methods used in 99% of places and services is dmuch easier to crack than sha256 for what I know.
The potential ia there, the timing isn't yet. A way to work on soft work improvement should already be talked about of course, but not taken as a thing we should rush on, otherwise we could break it instead of fixing it creating a bug if moving too soon.
Bitcoin is small fry compared to everything else but everything else isn't really concerned. It's just Bitcoin fud to try and change to protocol. Just like spam is fud to try and change the protocol.