Okay, new crap to debate, if Legion suddenly decided to go back to Arizona, NCR decided to go back to California, Yes Man figured out a way to kill himself and House farted and suffocated on his own gas then which faction do you think would take over Vegas?

Basically, within a mere week, House is gone, Yes Man is destroyed, killing Benny's dream, NCR and Legion retreats back to their lands and ignores the Mojave.
The land is ripe for the taking.
Which faction do you think would become the most powerful one and how do you think that the Mojave would change?

There are no Securitrons stopping anyone from entering the Strip anymore.
Khans are no longer oppressed by NCR.
Powder Gangers don't have any NCR to rebel agaisnt anymore.

What would happen?