I know another game company that said that (coughBlizzardcough)... they eventually went back and did it anyway (coughCataclysmcough). :p
Blizzard had the tech available to create new zones/areas for full flight when The Burning Crusade expansion came out in 2007. It took them almost 4 years (3 years, 11 months) to remake their two original Azeroth continent maps compatible with it.
In comparison, this game has only been released for just over two years.
WOW YOU GUYS ARE GEEE-IRKS! JHeinig giveus 1 social map with no surface but 1 nav beacon we thrust 2 at any time any distanceance but has EV suit requirement and lets us fly around in there for days/weeks/years and i'll be happy