I bought a second hand trackpad a month ago because I desperately needed, but I will only buy a new device (of any kind) if it comes with USB-C.
It's obvious that Apple is going to move their peripherals to USB-C, and my guess is that they (keyboard, trackpad, mouse) will be released tomorrow at WWDC. Deffinitely in 2023, along with the iPhone 15.
So when the new trackpad comes along, I'll sell this one and buy the new.