Housing has floor plans on their webpage at housing.louisiana.edu.
Haven't heard anything official as yet from Parking & Transit. What I've heard from people around campus is that residents will get parking in the new structure but, as of end of last semester, they had not decided on what to do with any excess capacity. I'm guessing reserved parking as it would be difficult to manage mixing the two types of parking (and that's how they managed the surface lots where the structure was built). Part of the first floor will be used by the credit union.