It appears someone finally figured out how to unlock the bootloader of most Windows phones, but I don't see any successful Android ROMs, nor much development, for the HP Elite X3. It's a start, but I wouldn't get my hopes up.

https://liliputing.com/2019/01/pretty-much-every-recent-windows-phone-is-now-hackable.html

@gazmito Just moved your question please see here https://forums.ubports.com/topic/206/will-you-port-to-device-x