Can I easily move the faucet for a tub in new slab construction?

I might want to move the faucet from in front of the tub to the corner of the tub. Will it matter if the hole in the slab is already at the front position? Can they just add an elbow and a little more pipe and shift the faucet over a foot?

What about the drain? I’m thinking that is probably the most important to have in the correct spot.