Yeah, as far as I know we're at least 10 years away from having quantum computers which are powerful enough to crack any modern cryptography and Universities are already going strong in terms of quantum proof encryption. At my university there is for example a team working on converting a company blockchain to be quantum proof.

More difficult than finding quantum proof algorithms, I believe, will be fixing existing chains. Imagine, all bitcoins which are in "lost wallets" could become accessible even if all the active wallets are converted to the new encryption system.