The current understanding among scientists is that the universe will not collapse into a Big Crunch nor undergo another Big Bang-type event. Based on our current knowledge, the most widely accepted cosmological model is the Lambda-Cold Dark Matter (ΛCDM) model. According to this model, the expansion of the universe is accelerating due to the influence of dark energy.
If the current understanding of the ΛCDM model is accurate, it suggests that the universe will continue to expand indefinitely, with the rate of expansion increasing over time. This scenario is often referred to as the "heat death" of the universe. In the heat death scenario, the universe will become increasingly sparse and cold as stars burn out, galaxies move away from each other, and all available energy is evenly distributed.
It's important to note that our understanding of the universe is continually evolving, and new discoveries may lead to revised models and theories. However, as of now, the prevailing view is that the universe will not collapse into a Big Crunch or experience another Big Bang-type event.