We’ve already got the technology to remake them as SSDs too. SATA drives are small and light enough, and eSATA is removable, possibly hot swappable. We’ve been able to eject optical discs with software for decades. A physically small drive inside a floppy shaped caddy wouldn’t take much work, and could be much faster than flash memory based drives. I don’t know enough about nvme drives, but they could be even better again :)