Looking to buy a 27 inch Imac to replace my 21 inch 2011 Imac. I've read that not all Imacs will receive significant upgrades. Not sure about the truth of that last statement. Anyway: I want something with an i7, a 2TB Fusion Drive, and 16-32 GB of Ram. Will it do me any good to wait for the Imac update supposedly coming soon, or, considering what I want, should I just get something now? Does anybody have reliable information as to what the Imac update will entail? Thanks for your advice and any other info you can give to me regarding any rumored Imac updates.