I don't think you'll have much trouble, as newest version to newest version usually doesn't break.
You'll just most likely experience outdated chunks from where you already explored and generated.
Minecraft
Updating a 1.15 World to 1.16
Submitted by kjh154814, 13-03-2020, 10:46 PM, Thread ID: 162459
Thread Closed
RE: Updating a 1.15 World to 1.16 14-03-2020, 02:25 AM #3 Meow, it's purr-sonal!
14-03-2020, 02:25 AM
#3