A couple of things to bandy about through the intarwebs ....
1) Timing in a Tournament Setting for 40k
2) Daemonhunters vs. Grey Knights
You can't do timed turns flat out in 40k. As soon as you do, people will game the combat phase ... what's that, you say? I can keep my guardsmen stuck in combat with Mephiston if I but drag my feet until my turn's buzzer goes off?! HORRAY!
But what about the Movement and Shooting phases? Can someone "game" that to his favor, or would he only be hurt if he took too long? I'm inclined to say the latter. That said, is there any kind of a way to time these without it being a stress and burden to the players at a tournament, and in a way that is ACTUALLY FEASIBLE?
Good question, and right now it's just academic - I'm not planning on instituting timed phases at the NOVA just now ... but I'd like to hear some thoughts on the matter.
Right now we have a Codex Daemonhunters. They are releasing a Codex Grey Knights. So, does that invalidate Codex Daemonhunters? Can Imperial players everywhere of all colors continue to take Mystic Tarot combos, and Hooded Brother Captain combos, and the like?
This is all irrelevant if GW releases ANY kind of statement saying that Codex: DH is now superceded by Codex: GK ... but (gasp) what if they don't? If you were a TO, how would you rule?