✔ 最佳答案
With the current expansion rate increasing exponentially it is unlikely that our universe will collapse on itself (aka Big Crunch); there doesn't seem to be enough matter, and thus enough "gravity" to pull everything together (this kind of universe is known as an closed universe). As a result, it seems that we would continue to expand forever in an open universe until everything is near absolute zero; known as a "heat death". Of course this would be a very, very long time, 10^100 years or longer.
As for creation of another big bang, it's hard to speculate whether the collapse of the current universe will spring into another universe because it is an untestable experiment. However, there are numerous other theories such as String theory in layman terms that suggests big bangs originate by "collisions" of universes. If you are interested you can watch PBS special "Elegant Universe" which will explain it pretty well.