we are lucky that the developers of the game has developed a map that was gonna added in retail dbo korean version but the game was closed.
the map is called fran fran desert (south) which is already in the game but you can't go there and there are no NPC or mobs, so i think that map in the future will be for a new lvl cap like 71-75 it also has a popular place in the anime which is Fortuneteller's baba palace. which we saw in dragon ball,dragon ball z and dragon ball super.
Daneos with the help of other developer can add some kind of dungeon same with what happened in dragon ball super https://www.youtube.com/watch?v=FZLtRTkfaIA when goku meets frieza and they fought with aliens.
aliens mobs already in the game , goku character and frieza character already in the game so it may be possible to create a dungeon which we kill aliens with goku and frieza at baba palace. also it may be possible to retexture frieza and make him golden frieza same as anime scene.
here is the map from above http://dbocom.com/tools/map/wo…510014140571600115405914/
click on the x marks to see the places of that map.