Please do not compare BioWare to 38 or CDPR. BioWare is one of the largest studios on Earth, EA's biggest studio. The only one which beats BioWare is probably Valve or Blizzard. And I honestly don't know of any non-publishing studio that has access to the kind of money BioWare has access to or even a fraction of it. They can afford to have hundreds of modellers designing secondary characters alone. 75M dollars of a budget that Reckoning had, which killed 38 outright, would probably be something BioWare made on ME3 pre-orders alone.
What you are asking is extremely costly. The only way I see that happening is via some sort of facial features generator which can generate non-important characters. And even then this only accounts for the looks. ›››
Yes, you can't compare BioWare to CDPR. Bioware is maybe one of the largest studio -which is depends on your POV, for me it's not- but the laziest studio too. They've money allright but how could you explain all stupid logical mistakes even my little nephew can realize in first look?! And, I can't say; they've created an open-world system in their games. Anyway, point is; this is not about money but intelligence and knowledge. You can do much much much better games without a bigger budgets which is CDPR definitely proved that in TW2 with story, gameplay, graphics, voice acting etc.
Check out this interview maybe you already read; http://www.rockpaper...n-world-beards/
If this will be true, I mean about open-world parts, we can't find any open-world game to compare this...