Any of these planned for the East Coast anytime soon?
No, none on the East Coast. I am doing a four day sword intensive in Tallahassee but no randori intensives. I have done them in NY, Baltimore, N Carolina, and Tallahassee... If someone wants to host one they can always contact me but I have some other things I am working on right now.
Frankly, Seattle is quite easy to get to. With warning we can usually get folks to and from the airport and find a place to stay. I wouldn't stay away just because it's the West Coast. I can make it cheaper for someone at my own dojo than I can on the road.