Welcome to Android Central! I've held off on the Nexus 9 due to various build quality complaints. There have been some rumors of a new Nexus 7 in the near future, but at this point they're still rumors.
Thanks. Any more substance behind your "wait" advice? My needs are fairly pedestrian, i.e. browsing, email, photos, and possible e-books, so if this tablet can do those things should I not get it?