Yes, please add support for Zerotier. I love Mikrotiks, but they are seriously lacking in some kind of SDWAN solution. Zerotier would be a very cheap and easy way to set this up.
How do you know it would be cheap? I don't see how they could comply with this license if they included it in ROS:
https://github.com/zerotier/ZeroTierOne ... ICENSE.txt
so they would need to pursue an "alternative commercial license", which would probably end up being paid for per-router [which I don't have a problem with].