The issue of spousal support is reserved in the separation case. No reason that a new disclosure would be needed to dissolve the status of the marriage, but any time he/she wants, until 2018, your ex can demand an updated Income/Expense Declaration from you in the separation case, on 30 days notice, if he/she is in the least bit curoius, he/she can find out anyhow.
If the assets and debts are divided, then that matter is resolved. But you will be required to provide the court with information on your income and your spouse will also be required to provide the court with her income as the court retains jurisdiction on the matter. But the court will not change the amount of spousal support unless one party asks for a change. I suggest that you seek help in getting this accomplished, though.