I can't tell what looks to be hanging on a wire and connected to the fuse on the motor board...that isn't normal. If you're asking about wires that don't connect to anything, then yes, harnesses sometimes had spare wire in the bundle that would be hooked up to optional relays, switches, etc., depending upon the game's configuration.

Typically unused wires coming from bundles have very clean cuts, compared to wires that have become broken from their coil tabs that look frayed and show underlying wire inside frayed cloth.