I really thope (think/hope) that WotC has learned that re-tooling an old setting for 4e reaps a lot of antagonism.
Retooling Eberron for 4e reaped very little antagonism. Retooling FR created a lot, but that's because they were trying to update it to a new edition and try and get rid of a lot of the cruft that had built up in the setting over 3 editions at the same time.