In the everglades of the burmese python has the same niche as the crocodile what might happen?

The thing that can happen between the Burmese python and the crocodile in the everglades is that they will disbalance the ecosystem for overconsumption of their prey and they will clash to displace one of them as primal predator.

Explanation:

To understand this answer we need to analyze several things first. After overconsumption of the same preys the whole ecosystem is going to be imbalanced because the reduction of one of the species in the food chain makes the whole ecosystem change. In our case, because they have no predators. They are going to reduce their preys and after that, they are going to clash to displace one of them to be the primal predator of the zone. The other species will disappear, the overpopulation of the winning species is going to expand to look for more prey, and eventually, the prey's populations will increase.