This is a list of unreleased content. Only official content, confirmed in the client or leaked by Riot, is listed. As development of League of Legends is highly iterative and mostly confidential, whether or not an item or feature will be released is highly speculative.
Pending - A piece of content which is being prepared for future release.
Delayed - A piece of content which is being held for technical or other issues, but will probably still be released in the future.
Shelved - A piece of content that has been set aside indefinitely, and may or may not ever be released. Models and/or entries usually remain in client.
Scrapped - A piece of content that has been abandoned due to thematic, copyright, commercial or other issues. Not likely to ever be released. Models and/or entries usually removed from client.
Unknown/Speculation - No reliable information or the only information is indirect, speculative or conjectural.
Riot has bought up loads of domain names surrounding the word 'Supremacy' in relation to 'League of Legends'. While nothing is known about what 'Supremacy' could mean, a similar 'leak' happened for 'Dominion' months before its official unveiling.
Future Victorious skins may be made available to purchase for two weeks at the end of the season.This will not be applied retroactively to former skins.
Players who earn Gold+ will receive the Victorious skin for free with a Vintage splash art.
Players who receive the skin for free or who purchase the skin will also receive a free Chroma based on their highest rank. Currently unknown if you will also receive the lesser Chromas.
To clarify: there is a Bronze and Silver Chroma, it's just not freely given.
Bronze, Silver, Gold, Platinum, Diamond, Master and Challenger Chromas will not be available to purchase separately.
Possibility of having all champions available in this mode to eliminate 'ARAM smurfs'.
The reroll system would be reworked.
Champion Update Schedule
Riot will no longer be issuing complimentary refunds on recent purchases that receive significant visual or gameplay changes. Instead, they are now disclosing which champions are set to receive significant changes and are advising players to reconsider their purchases.
New skin splash artwork for all champions that have previously received a visual upgrade. Skins that use the modern splash art standard will not receive an update. Shared splashes will also not be updated unless the skin receives a new model.
Removed:8% of target's missing health bonus damage
New Effect: Damage is increased by 0.5% for every 1% of target's missing health, for a maximum 22.5 / 52.5 / 82.5 / 112.5 / 142.5 (+ 75 / 90 / 105 / 120 / 135% Total AD)
This reaches 8% of target's missing health against enemies with 94 / 219 / 344 / 469 / 594 (+ 313 / 375 / 378 / 500 / 563% Total AD) maximum health (making it stronger against enemies with health lower than this while weaker against those with higher)
Damage to target/enemies hit by the target changed to 50 / 150 / 250 (+ 75 / 87.5 / 100% Total AD) from 200 / 400 / 600 (+ 200% Bonus AD)
New Effect: Target takes 25 / 75 / 125 (+ 37.5 / 43.75 / 50% Total AD) bonus damage each time they hit another enemy champion, for a maximum 「 150 / 450 / 750 (+ 225 / 262.5 / 300% Total AD) 」「 100 / 300 / 500 (+ 150 / 175 / 200% Total AD) 」
Andrei 'Meddler' van Roon is currently looking to give Urgot a new ultimate and passive. If the ultimate is drastically different, then he'll happily give Hyper-Kinetic Position Reverser to a new champion (the niche for the ability definitely exists, Urgot just might not be one for it)
Revised Innate: Warwick's basic attacks deal 2% of target's maximum health bonus magic damage, restore 5% (+ 0.95 - 1.8 (based on level)% bonus health) maximum health (reduced to 50% against minions) and grant Eternal Thirst, stacking up to 10 times. Each stack of Eternal Thirst increases the healing of this effect by 11% for a maximum 10.5% (+ 1.995 - 3.78 (based on level)% bonus health) maximum health. Eternal Thirst stacks decay at a rate of 1 every 0.25 seconds if Warwick has not damaged an enemy in the last 1.8.
Revised Active: Warwick slashes the target enemy twice, for a total of 80 / 110 / 140 / 170 / 200 (+ 60% AP) magic damage. Each slash applies on-hit effects. The healing from Eternal Thirst is increased by 60 / 70 / 80 / 90 / 100% for the two slashes, stacking additively with Eternal Thirst stacks.
Range: Technically reduced but functions like a basic attack (edge-to-edge from center-to-center)
New Active: Warwick unleashes a howl that deals 70 / 100 / 130 / 160 / 190 (+ 60% AP) magic damage and terrifies surrounding enemies, causing them to turn and flee from the point-of-cast for 0.75 seconds. Damaged enemies are also slowed for a few seconds.
New Passive - Blood Scent: Warwick gains sight of nearby enemy champions and large monsters below 50% maximum health (range is lower for neutral monsters). While moving toward an enemy revealed by Blood Scent, Warwick gains bonus movement speed. This bonus is increased as the target's health gets lower, based on the nearest applicable enemy. Enemies are made aware that Warwick can see them when he comes within a fixed range.
Similar to Orianna's Ball, Warwick will have an indicator that points to the nearest low-health enemy.
New Active: Warwick dashes toward the target location and then returns to the point of cast, dealing 70 / 80 / 90 / 100 / 110 (+ 30% AP) magic damage to enemies hit in both directions and slowing them by 95% for 0.25 seconds. The damage and slow can be applied twice, for a maximum of 140 / 160 / 180 / 200 / 220 (+ 60% AP) magic damage.
Hamstring can be interrupted by movement-inhibiting crowd control effects, as with Sweeping Blade. Warwick can activate Howl, Items/Summoner Spells (excluding Flash and Teleport) and interact with Dark Passage during Hamstring.
Revised Active: Warwick charges forward, stopping only when he collides with an enemy champion. The unfortunate enemy is stunned for 2.5 seconds while Warwick slashes them 6 times, dealing a total of 180 / 240 / 300 (+ 90% AP) magic damage, while Warwick gains 20% damage reduction. Each slash will trigger on-hit effects. The cooldown of Infinite Duress is reduced if Warwick successfully hits an enemy.