Black holes

Assuming that black holes never "stop", what would happen in the future when a black hole becomes so large that it pulls in the entire universe?

wow, you are all wrong...

when a black hole sucks in everything, and there is nothing left besides black holes, they will suck in eachother until all matter in the universe is compressed to the size of a grain of sand, which case another big bang will occur, and the universe will expand once more, its called the big crunch theory...