Question

If a hypothesis is tested repeatedly and is not proven false it may next become a

Answer 1

Until it is proven correct it is called a limbo

Answer 2

Upon analysis of the results, a hypothesis can be rejected or modified, but it can never be proven to be correct 100 percent of the time. For example, relativity has been tested many times, so it is generally accepted as true, but there could be an instance, which has not been encountered, where it is not true.
It may become elevated to the level of a theory.