This is a big deal. I am currently evaluating solutions to the problem that Team Drive is supposed to solve.
I totally trust Insync - your product has been rock solid for 100% of the time I have used it. If you guys roll out support for Team Drive - and even go beyond, work to offer support with Drive management, then our company will go from 1 customer to 100% customers with you. (I have been trying to quietly persuade people to adopt your product, but that will change if Team Drive and Insync are well aligned.) OK, my company is on the small end but we are a nice nonprofit so maybe we get some extra love.
My suggestion is that you not only support Team Drive, but you offer either consulting or additional products to complement organizational deployment of Google Drive. There are a couple of companies in that space also, maybe you could partner with them if you don't have the capability to scale up solo.