Street Fighter really used Final Fight lore to establish the origins of Strider. Jesus, how many franchises are now canon to SF?
-Street Fighter (duh)
-Final Fight (multiple characters and overlapping plot points)
-Muscle Bomber/SNSM (canon to FF, cross-references between SF and MB)
-Justice Academy/Rival Schools (recently established by one of SFV's lead artists)
-Strider (Zeku heavily hinted to be founder of the Strider style)
-Vampire/Darkstalkers (not officially canon, but Donovan was (possibly jokingly) referred to as Dan's ancestor in concept art)
SF's practically become Capcom's version of KoF at this point.
So Strider is now officially part of the SF universe.
Can't wait till Dante is also confirmed to be part of the SF universe somehow.
Nah save Dante for Vampire 4. We need SFVI to take place a decade after SFIII so that some random kid named "Rock" can show up in the year 200X.