9. Eli Is Young Liquid Snake
Kojima Productions
The Rumour: Eli is a new character introduced in trailers for The Phantom Pain, described as "a youth who curses his fate", and in the most recent E3 trailer, we see him tussling with Big Boss in what appears to be some form of a QTE sequence, which BB eventually wins. It didn't take long for the Internet to begin speculating on who he might be, and after suggestions he might be Raiden were quickly thrown out due to the time period, fans deduced that Eli must be the one and only: Liquid Snake.
How Likely Is It? Considering the game takes place in 1984 (at which point Liquid would be 12 years old) and Eli's physical characteristics, it seems pretty likely that he is the twin brother of Solid Snake. Liquid's back story states that he was moved to London shortly after his birth, though little has been said about his life in the 1980s, allowing The Phantom Pain's story to slot effortlessly in. In addition to all this, some eagle-eyed gamers noticed that the Japanese writing on the back of Eli's jacket translates as "Liquid Man".
9/10.