They FINALLY told us how to actually play him!
"(2.10) “As if…”
Some card effects allow an investigator to resolve an ability or perform an action as if a certain aspect of the game state were altered, using the text “as if…” to indicate the difference. The indicated ability or action is resolved with the altered game state in mind, but the actual game state remains unchanged.
=This includes all steps of the indicated ability/action, including the paying of its costs, attacks of opportunity (where applicable), and resolving each aspect of its effect. =Other card abilities or game effects do not resolve with the altered game state in mind; only the indicated ability/action.
Example 1: Luke Robinson’s ( 4) ability allows him to “play one event each turn as if you were at a connecting location and engaged with each enemy at that location.” If Luke plays Barricade ( 38) as if he were at a connecting location, he would attach it to the location he is considered to be at, instead of the location he is actually at. Doing so would also provoke attacks of opportunities from any enemies at that location, since he is considered to be engaged with them throughout the playing of Barricade. That location has the following ability: “:Reaction: After an event card is attached to this location, deal 1 damage to each investigator at this location.” This ability would still trigger, but it would not deal any damage to Luke, because he is not actually at that location. He is only considered to be at that location for the purposes of the playing of Barricade.
Example 2: Luke Robinson ( 4) instead plays Shortcut ( 22) as if he were at a connecting location. This would allow him to move to a location connected to the chosen location. If there are 1 or more enemies at that location, they do not move with him, because even though the event is resolved as if Luke is engaged with him, those enemies are not actually in his threat area, and therefore do not move when he moves."