I might be late to this party, so my apologies but I did not see anyone mention this information in this thread. I know people are hoping and praying for an updated Cougar. I've never owned one, but would be certainly interested. My understanding is that "current" Cougar throttles are not USB with a market for conversions, adapters, etc. I saw your photo and mention of "word on the street" about the one on the table at the 2019 show being USB. TM's page on the cougar, under the features tab, says it's a "Full Speed USB". I have no knowledge of an out of the box TM Cougar with USB, is that a thing, is TM's website wrong, or is this something coming, but not broadcast? Again, my apologies if I'm rehashing old information.
http://www.thrustmaster.com/en_US/products/hotas-cougar