I think the Sox will pass on Xander and JBJ when its time to sign them long term. They may even trade one/both. Long term, I think their major pieces are Betts, Benitendi, Devers, Sale, Kimbrel, and that's about it.
They could add Martinez or Hosmer, but hopefully not both. I don't imagine that their contracts will justify their performance past 30yo. I think Price might need to be traded, opening up another need to sign a SP.
The Sox will need to make some type of splash. I'm guessing that it might be something that many aren't even considering at this point.