If you want I'll help you administrate this etc.
I'm not sure about the date for it though- 19th Oct is the first league game, so November is right in the depths of the League and Masters tournaments. Add into that the GFDT final happening, and the World Series in the New Year (where we wouldn't want to see our team's chances damaged by tournament overload) and you get something that doesn't seem so ideal to me.
Also, one other idea that might be nice would be to expand what the tournament does. At present each tournament we have has at least two unique features:
Masters: Solo only scoring, Round Robin.
GFDT: PPSC style points, but with solos counting big-time, knock-out style.
League: Conservative WTA, League format.
World Series Diplomacy: Inter-site, team tournament.
Champions' Trophy: Very high quality, one off match
With this, we only really add "Nationality based" to the program of tournaments as a whole. I'd suggest it needs something extra to justify its taking a leading position in the 'calendar'.
One thought might be having some variants in there, so there is a public press board and a couple of no-press boards in each game.