Not really. The rumor for a new land at AK has been circulating almost since day one. Given the parks young age, huge availability of land and lack of attractions a new land was all but inevitable.
And now I read that there was a parcel of land set aside for Australia at one point, and that is where many believe the new Avatar will go. HMMMM. Too coincidental. Had it been rumored that something was going on there more than a few months ago... no connection, but it was very recent.