I wonder if Guileful Switch is any use at all now, I can't think of any.
Looks like RRoT now doesn't actually do anything unless you have a magic weapon or a high crit weapon. I think I'd add a caveat that if you don't get to roll any extra damage on a crit, you can roll 1d6. Other than that, good changes.
Initiative order goes warlord, monster, rogue.
Rogue and warlord are flanking monster, but monster will be able to shift/teleport away on its turn.
Warlord uses guileful switch, rogue gets opportunity to sneak attack monster before it gets away.
Apply the same principle to any scenario where you act before the monster and you want your ally to do something to it before its turn comes around.
LFR players can retrain a class feature (along with up to 2 powers and 2 feats) at any one point during their character's career. So they should be just fine.Plus, under the retraining rules, he can't even switch back to Weapon Talent (obviously, GMs can and should be very generous about this, but I wonder what LFR players will do).