Oh yeah, there's a patch coming out tomorrow. Quick rundown though.
Skins
The following skins hit the store this week for 750 RP unless otherwise stated:
* denotes Legacy skins
SSW Singed*
SSW Rengar*
SSW Talon*
SSW Twitch* - 975 RP
SSW Thresh* - 975 RP
Ace of Spades Ezreal
King of Clubs Mordekaiser
Queen of Diamonds Syndra
Wild Card Shaco
Star Guardian Lux - 1350 RP
Champions - Rework
Ashe has received a rework, with a completely new ability and a new passive along with other kit changes. More information will be posted here soon but places like Surrender@20 will have all the details in the mean time.
Champions - General
Akali's Crescent Slash's AP ratio has been increased slightly, and has a shaved cooldown (1 sec cooldown at max rank lol). Shadow Dance also now sends her through her target, similar to Fizz's Urchin Strike (this also means that she does not follow her target should they Flash while she travels).
Annie finally took a long-awaited nerf to her Basic Attack Range, down to 575 (from 625).
Hecarim's Rampage has a greatly increased mana cost, but no longer deals reduced damage to Monsters.
Kalista's Martial Poise dash no longer has an increased distance while dashing away from her basic attack target.
Morgana's Tormented Soil deals less base damage at early ranks. (% missing health scaling unaffected)
Nocturne's Unspeakable Horror's base damage has been increased at all ranks (especially early).
Olaf now gains a 1-second spurt of Movement Speed toward enemy Champions upon activating Ragnarok.
Renekton gets a 50-range buff to his Ruthless Predator-empowered basic attacks. The self stun has also been reduced a bit.
Riven's Wind Slash doesn't travel as quickly anymore. Well, neither does Riven herself; base movement speed down.
Tristana received a couple of buffs to Explosive Charge; not only is the per-charge damage amp increased, the cast time is also reduced by Attack Speed.
Trundle's Pillar of Ice slow has been slightly increased. Knockback distance has also been increased.
Veigar's Event Horizon's delay has been reduced even further, down to 0.5 seconds.
Zed must now wait one second after casting Death Mark before he can return to Death Mark's shadow.
Champions - Insignificant Stuff
The following champions received minor changes that you may or may not care about: (to be updated)
Akali
Azir
Nasus
Renekton
Ryze
Twisted Fate - Jack of Hearts skin has new splash art (shares with Ace of Spades Ezreal)
Xin Zhao
Items
Enchantment: Cinderhulk's aura damage has been reduced and no longer ramps up in combat. It deals increased damage to Monsters instead.
Skirmisher's Sabre mark time has been reduced to 4 seconds.
Combat text adjustments
Combat Text now scales up in size based on relative impact of the skill.
Champion abilities that deal damage over time or multiple hits now combine their damage into one larger 'spinup' counter style number.
Minor cleanup, especially around proc type effects or multiple types of damage happening in the same frame.
Summoner's Rift
Dragon's base damage has been significantly increased.
There is now a yellow duck. Quack quack.
That's it!
Skins, skins, skins. There's a lot of balance changes as well; most notably, the Cinderhulk line. One can only hope this is the end of the tank meta; well, who knows.