Hi Aly,
well 2000 points per site should not be an issue (I’d even say per device I’ve also seen that much work 
) I would assume that anything based on OPC-UA is more probably to reach it’s limits than using ADS/AMS.
Well the thing is: I generally have implemented many drivers vor various protocols. I’m currently hardening them for commercial use. I am planning on releasing quite a large number of plugins. Not only for Inductive Automation. I have seen a large number of industrial standard-products missing many such driver plugins (and others) … my plans are simply to close these gaps.
I did try doing this via consulting and open-source for about 8 years now … but that’s a thing I’ve given up on. I think the Automation industry will become comfortable with consuming consulting services shortly before I become a pensioner. So I’m generally stopping that path and continuing on one the industry knows: Buy a licence for a product and get commercial support for that. I will try to offer a better level of support than I have seen with the big players, but being a very small company, that will definitely not be 24/7 5 hour reaction time type of support.
Does that answer your questions? But yeah … I’m planning on licensing the driver on a per-ignition-instance basis … would be interesting to know how many of these you would be requiring. Also if you are willing to act as a beta-tester.
Chris