Ok, so these things happened:
1.- Garchomp was unbanned + Sand Veil and Snow Cloak banned.
2.- Tornadus-T was banned, Keldeo remains in OU.
3.- Deoxys-D was banned. Now people use Custap Skarmory (lol)
4.- Landorus-I (Life Orb + Sheer Force set) is a
huge threat. Currently not a suspect, but probably will be. Check
this thread for more info about this topic.
I don't know if this happened before or after Garchomp's retest, but Genesect was banned.
1.- Most powerful core: Banded Tyranitar + Keldeo + Landorus-I.
2.- The metagame focuses on weather, as usual.
3.- Weatherless works great too, but it needs a good teambuilding.