I think Mikrotik already realized that 16MB is a little tight. There are refreshes of existing device like Chateau LTE12 (2025) now with 32MB flash. There are other devices in the pipeline, see http://forum.mikrotik.com/t/mikrotik-5g-hardware-roadmap/180666/1 now with 32MB flash as well. Good to see Chateau 5G R15 has now 32MB. Where the 5G R16 only had 16MB (like the original Chateau 5G). I like the funny fact, people will think R16 is better/newer than R15. But it is the other way round.