I was in the other game. I was the traitor. We were close to a stalemate line, with myself and the remaining Rebel allied to prevent the King/Knights from reaching their win condition. The King/Knights *very definitely* had the upper hand in strength and position, but none of us reached the special win conditions we all agreed on for a given team to win. Ultimately, because we were playing with special rules, even arriving at 30 centers wouldn't be a "win" unless the right players were eliminated.
Then one of two things happened: either a) we got bored and quit, or b) the game arrived at a stalemate in which it was mathematically impossible for any team to win. If I stabbed the rebel and took his centers, the king would win because the rebels were dead. If the rebel stabbed me, the king would win because all the rebels died. If I supported the rebel indefinitely, no one would win because the King/Knights couldn't break the stalemate line (I think). Thus: we drew, and want to try again.
I like the idea of the king being forced to be an interior power. That forces more active gameplay, even if the king gets surrounded by rebels. To avoid the king being beset and killed by random placement of rebels, try adding this role to the team of knights: Prince. The prince is second in line to the king. Should the king die, the prince's identity is officially revealed (it was hidden from all beforehand), and he takes command of team Kingdom. The rebels have to kill both king and prince. Adjust the balance of players to team Kingdom and team rebels accordingly. ....thoughts on this?
Public press would make this game hilarious. Much more so than private press, imo.
Also, I don't have time to play the try on the modern diplomacy map, but I'd love to spectate.