My observations:
1. Mueller (and the current house investigation) is done. This blows that investigation off the map and will not be heard again.
2. Biden is done. They have decided to swap Biden for newest impeachment claims. They cannot claim Trump asking for help from Ukraine benefits Trump unless Biden was guilty.
3. Trump knew something like this was going to happen to replace the Mueller investigation. He is holding his fire on releasing the investigation of the investigators because he knew a new acquisition would push everything else off the news.
4. My guess on the outcome is that Democrats have cried wolf one too many times and the general public will not be moved by this. Polls will not move much regarding impeachment.
5. President Trump is holding his fire and the results of his investigations and will time his defense and offense after he thinks they have played their hand.
That’s it, in a nutshell.