The injury is a concern, free agency probably not.
Some reported Milwaukee is not opening this up to the entire league. They would work with him to send him where he wants to go. It wouldn't shock me if there was an extension agreed to before the trade even happens and signed immediately after.
SGA had 33 points and did not play the 4th quarter last night. In 23 games, he has played in the 4th quarter only 11 times.
When Golden State won 73 games, Steph played in 60 4th quarters. So SGA has a great shot at beating that.