I'm not sure if this is relevant to "upcoming skins", but you can get a few free skins (Riot GIrl Tristana
, Dreadknight Garen
, and I think Grey Warwick
) for liking/subscribing to League's channels on facebook, youtube, and twitter. You can google each of these skin names if you don't believe me—also, even though I know you're not an idiot: if there is a link saying there are Legendary/Ultimate Skins you can get for free (like DJ Sona), it's a likely virus trap. Letting your know beforehand.
As for skins: there is a YouTuber named BroFresco who does a lot of videos for LoL, and some of his newest videos showcase the skins. From what I am looking at, here are the following new skins from what I'm seeing on his video channel:
750 RP: Caskbreaker Gragas
, Whitebeard Ryze
, Lionheart Braum
, and Swiftbolt Varus
.
1350: Gravelord Azir
, Elderwood Hecarim
, and Voidbringer Illaoi (no icon yet).
1820: Dragon Trainer Tristana
.
These might be different, the prices are just what I'm getting from BroFresco's videos. For his channel, here's a link: https://www.youtube.com/user/BroFresco
So...yeah. Hope this helps.