Pacers would need to make it up to at least the 11 seed in the East or be within a game of it when they make this deal. Last few games they've looked better but still at risk of giving away a top 5 pick.
From the Pels pov this could be viewed as making up for giving away their own pick. With Queen proving to be a good building block Missi isn't as needed and Walker's upside could be reached with a new opportunity