I'd love to see the New York scenery get a second art pass and really pump up the detail and resolution, especially now that we have the R22. It could serve as a showcase for the potential that AFS2 has and start to set the sim apart. Currently I find the level of detail broadly similar to other sims, but AFS2 wins hands down on smoothness and framerate. If moving water and sea/road traffic make it into the sim, one 'showcase demo' area such as Manhattan would really wow the audience so to speak.
I'd happily pay for a 'New York plus' version add on pack.