Anyways are there many more cases (literally) of where having a 65mm wouldn't fit? I don't have this database in my head, but from what I sketchily remember I think there's the LZ7?
I think I'm leaning towards 47mm and those who want better performance in the 57-58mm class can swap over to a 25mm fan for higher airflow. As soon as I go a lot taller than that, I've knocked out the Zaber Sentry and Dan A4-SFX as well as one likely very popular case that may be upcoming.
There will be when I'm ready to disclose details publicly. I need the okay from my patent lawyer to do so as I don't want to spoil my patentability (if I have any). I am planning to post a "build log" of sorts.