Looking at the visual scale in that piece of art above and comparing to what I'm seeing on Google Maps in terms of the space between the facades and the embankment walkway, I think those grass areas are going to be smaller than they appear in the art. You may get the full scale actual fountain center, but the full steps won't be coming, as that covers roughly 30-40ft. of space in diameter, and there's roughly 60ft. between Wyndham's facade and the wall against the embankment path. I'd expect a path just as wide as the embankment path the full length of the facades, so just a bit more than 20ft. across, at least.
Anyone have any recent ariels, because I bet they're laying out the plaza area right now, or already have it laid out.