Can also confirm: my DevTerm now has a uConsole trackball in it and my uConsole has a EVQWJN007.
(I’ve been using my DevTerm basically every day for a year, so the trackball eventually wore, and while waiting for the replacement to arrive, I switched it with the trackball from the uConsole. I use the mouse way less on the uConsole. Just got a replacement EVQWJN007 today and put that into the uConsole and it is a perfect fit. They’re available on Amazon as well. I could not find one on Digikey but did find the original part: COM-09308 SparkFun Electronics | Switches | DigiKey .)