Likely, but still unknown. Flynn could have been swept up in incidental collection of the Russians.
Flynn will be pardoned by Trump at some point, probably before he leaves office in 2021 or 2025 depending on what happens in 2020.
Remains to be seen. While this charge does hurt Flynn's credibilty to provide further testimony, Mueller may not be through using him against Trump yet.
Pence and Trump must have had the recording of the Flynn meeting with the Russian ambassador provided by the intel community. They had no choice but to fire Flynn who was probably exceeding his authority. Still, there is no crime with discussing these matters with the Russians, only the process crime of lying about it to the FBI.
On this we agree, and obviously Trump pulled a quick trigger to try to insulate himself, but in the highly charged environment putting any blood in the water may have hurt as much as it helped, at the time. Longer term, it will probably prove to have been the right decision.
A steaming, stinking pile of BS. This was a pretext to monitor the entire Trump campaign and transition teams. It is unprecedented and the most dangerous scandal against the Republic since its inception.