A new champion and skin sale starts tomorrow! Between January 30th and February 2nd, you'll be able to pick up Frost Queen Janna for 487 RP, Northern Front Swain for 375 RP, Emumu for 260 RP, Ziggs for 487 RP, Jarvan IV for 440 RP and Karma for 395 RP.
Frost Queen Janna (487 RP)
Northern Front Swain (375 RP)
Emumu (260 RP)
Note: As well at Swain, Jarvan IV was also texture rebalanced. Check here for updated pictures of his changes that are now live in 5.2.