Personally I'd have liked to see LFR relegated to the previous tiers, ie for the tier before the current tier, always. Keep up interest in normal mode raiding and give those who want to experience it the chance to do that when the next tier come out (or even in the MoP model, every non-raiding tier open up LFR for the current tier even, so ToT would become available for LFR in 5.3). I'm sure that won't happen but that's how I thought they intended to do LFR when it was first announced and that would've been fine. Now LFR "kills" the encounters and you have plenty of time to get sick and tired of it before you get to it on normal (if you like me are in a not-so-progressed guild )