There are only two outcomes of the Wagner Rebellion in Russia.

1. Putin puts it down and becomes even more powerful and entrenched and his popularity grows even more.

2. The military flips on him, some new leader is installed, the US celebrates but in a few weeks/months the new guy will be "even worse then Putin" on ever news station.

Option two will bring huge instability to the region and is actually more dangerous. While my opinion certainly isn't popular it is true. Wait and see.