We know the Dominion destroyed the Maquis within days of absorbing Cardassia. But were they all killed? Some obviously survived in Federation prisons. What do you think happened to them during and after the war? Given Starfleet's manpower shortage and the specialised skills of the Maquis against the Cardassians I think it's likely many received amnesty under the condition they join the war effort. Excluding the worst offenders, like Eddington.
What happened to the DMZ? Given that it was the border, I assume it saw lots of fighting. Possibly was also occupied by the Dominion. Did they destroy the Federation colonies and slaughter the colonists? I'm sure the Dominion wouldn't have a problem doing something like that. What of the Cardassian colonies? The Feds wouldn't destroy them but like all of Cardassia, they're probably severely damaged.
What after the war? The victorious Federation can dictate the terms to the Cardassians. Should it allow resettlement by the surviving colonists/Maquis? Should the border change? Or would that just spark another conflict? Was the entire Maquis struggle completely in vain?
So many fascinating questions.
I really wish DS9 had one more season. Did Voyager follow up on any of this?
Did the novel continuity clear anything of this up (if yes, please don't spoil it - much)?
What happened to the DMZ? Given that it was the border, I assume it saw lots of fighting. Possibly was also occupied by the Dominion. Did they destroy the Federation colonies and slaughter the colonists? I'm sure the Dominion wouldn't have a problem doing something like that. What of the Cardassian colonies? The Feds wouldn't destroy them but like all of Cardassia, they're probably severely damaged.
What after the war? The victorious Federation can dictate the terms to the Cardassians. Should it allow resettlement by the surviving colonists/Maquis? Should the border change? Or would that just spark another conflict? Was the entire Maquis struggle completely in vain?
So many fascinating questions.

Did the novel continuity clear anything of this up (if yes, please don't spoil it - much)?