Yes the city is massive, but why waste all that dev time if you only go there once? There seems to be a blank canvas and nothing to fill it. They need a team of guys just thinking shit up to do, and then implementing it. storm a building floor to roof, survive a wave of attacks, full on riot, kill a target in a crowd of friendlies with no casualties. The list could go on. But we've gone back to destiny, scan thing, protect thing until time=0. The dark zone is the key here put missions in the dark zone, make them hard as nails that require coop with sqauds, end boss needs teamwork. THEN one mega drop. squads could join enemy, hold off advance until timer win. let us join multiple teams together and have a fucking war.
Basically all the hard work is done, THINK OUTSIDE THE FUCKING BOX UBISOFT and make fresh content frequent and free, or at least cheap.
I'm taking my PS4 to work, and destiny will be coming this time.