Ki-102b isn't an interesting aircraft but as far as combat goes is in the level of Re.2005 for example. Although its probably hard to admit when it comes to certain advocates of Japanese aircraft who oppose Re.2005. I wonder who I'm talking about.
Anyways, Randy is a very interesting aircraft that would definitely be something that I'd love to see it in the LWMA but it's hardly a priority, not even close. It'd be pretty weird history-wise if it would be introduced before Ki-45.
One thing that is worth mentioning is the excellent power-to-weight ration of 2.4kg/hp, that's very nice for a twin, two seat heavy fighter.