Are you saying the the end point of the Universe is a blackhole?
Are you suggesting that all that darkness is a "super blackhole"?
No I'm saying it's infinite, because wormholes exist, and time does not exist (gravitatonal time).
Some believe that blackholes are the edge of the universe though.
Blackholes ae not the ultimate dark, but the ultimate in light energy, they are also some balckholes that are not in a fixed place, they move, expand, and can die.
Alot of different schools of thought on the matter, since were shifting away from newtonian school of thought, and not thinking of just "atoms"