Bosa reportedly will travel with team to Pittsburgh, expects to sign in "next few days".

I think one of the things people need to understand is that the cap obligations the Niners have make a deal like this complicated. It's not just a question of total money, but also when Bosa gets that money, and how the Niners make cap room to make that happen. The deal might require coordinating contract restructures with other players to make space in certain years, so the team is also having to figure out what they can do there too. This will probably be the most complicated contract the Niners have ever negotiated. Good job on both sides for keeping it from getting contentious even though it's taken so long.