Nothing has changed, but we've to go back to Armstrong for a comparison.
Ismael said he wanted to keep Britain but the club sold him when it was obvious that he wasn't going to sign, I'd say that was the correct thing to do.
As far as the others go, let's see what happens, each one is an individual case. An "inability" to resign them may be an unwillingness, especially with the midfield reinforcements. The player himself may not actually want to sign.
If Tronstad, Travis or Hyam resign or are sold before their contracts expire, on top of the Britain sale, would that then suggest to you that things may just be changing?