Not just to the DLC but to the whole map?

For me new randon encounters all around the map would catapult this game to immortatility.

Please do this!!

I hope so but they just might add them as Wild Wasteland Encounters. FO3 and New Vegas don't have random encounters, they are scripted. Maybe it has something to do with the engine.

Fallout 3 had random encounters. Remember that one sniper with the slick backed blonde hair and sunglasses that tried to kill you? He always came at random moments. Same with the fire lance event.

As for if they can put in more, yes, they can. But I think they're working too much on out-of-map areas and encounters in those areas rather than bothering with the Mojave. =/ At least for the time being.

One plausible possibility is that Obsidian doesn't have the same experience with the engine that Bethesda does, so may not have been able to get the random encounters to work properly or even to their satisfaction in the time frame they had to work with.