Site selection hasn't been finalized relative to which side of Pine St. it's going to go. It'll either be the Receiving Yard and the Pine-Conant block, or the industrial crud lots and Pine-Dexter block. Either way the station design is identical and the site plan involves a lot of TOD infill density. Configuration of the surrounding development is all that would significantly vary from one site to another. Don't know how much parking they envision. Hopefully not an overdose of it; this is their one big chance to get downtown density built out really really right.
Chances favor the P&W yard because it's already had all structures raised to the bare slab, RIDOT already has a rich and productive working relationship with P&W, and there's no loss of empties-storage capacity here that couldn't be absorbed by Cranston Yard instead. P&W does need yard space, but finding new uses for the Receiving Yard is a futile pursuit because it requires crossing over all NEC tracks right in the grill of the commuter rail yard to even reach it. They confine fetch/deposit moves of those empties to the middle of the night because it's not worth the trouble haggling with dispatch during the day for scarce slots to stage such an awkward movement.