Oh yes, absolutely. In fact Trezor uses two signature algorithms for their firmwares, pre and post quamtum precisely for the case that the post quatum algo ends being unsafe. Unfortunately I don't remember the details. I hope some of them come and comment. ping nostr:npub1lz8xv2dnyryrk4vswkcgf52vqqzruqwuyp53s7pvusx4fef9fh2s7hh86s