You could in theory fit a 12 shot Mk. 56 VLS in the existing slot. I'm not sure the platform is tall enough to fit a self-defence length Mk. 41 though. Not without interfering with the compartments below.
The Iver Huidveldt can carry sufficient missiles on it's weapons deck that I seriously wonder what that artist was smoking when he put the VLS there.
Also, picture updated with credits, AND the LRASM missile. Because it needed to be drawn, mostly.