>>49013020>>49013067Emerald lets you talk to him via the Match Call. It's not much, but it lets you know about stuff like him leaving Verdanturf and his Ralts evolving early. On the flipside, they moved his fight to the beginning of Victory Road for some reason.
I never got far enough to check for myself, but supposedly ORAS also updates the gym statues at a certain point to list Wally's name on them (and the team bullshit distracts the player long enough that Wally's name above theirs after completing the Sootopolis gym). That might be too much of a red flag if somebody were to check them though.
