Why Yone is most likely Trace 1 in the Project Teaser
http://1.bp.blogspot.com/-dQEwiv5em0k/VdTItJ0n6gI/AAAAAAAAwAI/hN0n0J6do-I/s640/2343243223432.jpg Okay, so before you read this post, read the original reddit post about this HERE.
So, many are saying that Yi is Trace 1, but here's why I think it's Yone. Yasuo killed and buried him, but then moved on. After this, the body was left there, meaning somebody could have found it and moved the memories into a new body, hense the whole theme of the teaser being "Reconstructing data/memories." After reading both Yi's and Yasuo's lore, Yi has nothing related to the quote "Do not trust corrupted memories", while Yone himself has everything to do with that. He was led to believe that Yasuo had murdered the Elder, but that was a false accusation. Plus, if Yone was brought back from the dead in a new body/mech suit thing, this would explain the VERY recent update on the news feed displaying this, and saying "PROJECT: ERROR // CORRUPT - MEMORY REPAIR: 91%"
Sources: http://na.leagueoflegends.com/en/site/skins-project/#!trace-1 http://www.surrenderat20.net/2015/08/project.html
Edit: Alright, so I'm looking into it more at the moment, but here's what I've found so far. In the corner of Yasuo's page, under his health bar, there's a code that I don't think is binary, but I'm not sure what it means yet. None of the other pages have it.
Yone may very well not be who it is, but there is strong evidence pointing to the fact that Yasuo does have something to do with whoever it is. They both share the same Memory Trace ID, and when you hover over Yasuo's button on the main page, it has a particle effect that none others share, which likely means he's important to... whatever this is.
I think these were just glitches because they only worked once, but when I clicked the middle it took me to Yasuo's page, and then when I went back to the menu his Memory Trace was a dark gray color text.