On a second season:
I say save Sam's arc going forward for a Captain America 4 where the reformation of a new Avengers team in the face of another "Civil War" type scenario with higher stakes.
The brightest spot in the show is Carl Lumbly as Isiah Bradley. Why anybody would want F&WS season 2 is beyond me when we can divert attention to Isaiah and Eli and do more for the future of the franchise, especially for black characters.
Show title: The Patriot
Limited series, origin story of Isiah and by extension Eli. I doubt Isiah has sat his grandson down and really gave him great detail on his trauma and experiences. Now that the world knows and Sam has taken the mantle, he's more willing to speak on it. This is how we get our epic fight scene between Isiah and the REAL Winter Soldier. Also how we get to see the reality of the experiments, his rescue mission and the consequences. THAT is so much more interesting than a season 2 of this show and would do two really important things:
1. Set up Young Avengers with something that would be HARD to fukk up.
2. Get Carl Lumbly more screen time in the MCU.