Ekko's Gang Theories!
I just wanted to get a discussion going on Ekko's lore, all the mysterious people in his release video; Seconds! And how it all relates back to Vi/Jinx.
First thing to note, is this picture! I'll call it Ekko's Shrine http://i1203.photobucket.com/albums/bb400/Spiralin9/Ekkos%20Shrine_zpshj5wshyy.png
I think the girl to the left of the boy with goggles looks like Jinx. I also noticed that in the gang "goggles" seem to represent possibly some kind of status as Ekko has a pair of goggles worn around his neck, and clearly the boy on the mural had goggles. But there is a third person who is known to have goggles in league.
http://www.mobafire.com/images/champion/portrait/vi.jpg
That's right, Vi! Who, let's remember, suffers from amnesia and doesn't know much about her past. But! Perhaps the "gang" she was a part of, and the goggles means she was once with Ekko.
http://media-titanium.cursecdn.com/attachments/thumbnails/43/155/638/638/ezreal_square_0.png
Just throwing ezreal in there too
I also borrowed this from a reddit post,
"Ok From what we know/confirmed with the release of Ekko and League's Past Lore
Vi, Ekko, Jinx and the Boy from the mural were all from the same gang who ran around the outskirts of Piltover and affiliated themselves with Zaun A great earthquake strikes in Kalamanda some time in the area later known as the crystal scar trapping miners Vi left her Crew to save miners trapped after a job gone wrong in Kalamanda Jinx at some point in time started talking to Fishbones and went crazy wishing to torment Vi Ekko shows regret and seeks to preserve mural in Zaun (in video) A Piltovian boy missing for 2 months found sick in Kalamda http://leagueoflegends.wikia.com/wiki/Piltover Ekko has a great love of Zaun and wants to see its progress and not be corrupt (see audio files)"
tl;dr Ekko, Vi, Jinx, and the missing boy were all originally a part of the same gang. What do you think about that?