Some thoughts,
I imagine the work behind the war and peace changes is somewhat minimal compared to the other changes and is a badly needed change.
The undercrewing of ships update was a nice addition but being so recent this feature could be pushed back so other areas of the game are improved first.
This is likely the largest of the updates mentioned and would be ideal for everyone overall but there are other smaller updates which could be done first.
Not needed in the games current state in my opinion.
The changes to production building I think are great and don't require this to be addressed as soon as you might think.