Nice to see Seondeok confirmed. It looks like the Seowon will be a strong early science producer, and you want it down as your first district so you can get the advantage early. While to
maximise its bonus you need to have it away from your urban core, remember that mines will effectively counteract the adjacency penalty. It will create some different city-planning decisions to everyone else's campuses.
I'm slightly disappointed they went for the Hwacha over the Geobukseon. I've been a fan of Turtle Ship battles since Age of Empires 2 days
. I suppose we'll still have Yi Sun Sin and his absurd early Ironclads.