You have time probably at least a year before you need to upgrade to 2tb.

To clarify, it's ARMBIAN OS that Futurebit software modified to add ckpool, node and bitcoind in the futurebit format and connect the miner.  I think there should be a software download only really needed.   So there should be an update.  Check with the memory manufacturer too.  It is an Orange Pi running in the system?  Ubuntu 22 Linux.  They also say up to 2TB.  Maybe if futurebit has a list of compatible 2TB nvme or what does the ARM core work with?