Nightingale main quest epiloge idea

Greetings!
After recently completing the main quest I have come up with a few things.
Once the quest was over it came off as a little anticlimactic.
We let puck into nightingale, is there not going to be issues with that?
The bound are gone, but the city is still destroyed (even if the city still looks amazing)
With no bound to kill there is little reason to return to the namesake of the game aswell which is quite a shame.

So here is an idea for you:

once the main quest is completed and the hope card has been played you get to fix nightingale up again. With the many districts there would be plenty of buildings and structures to fix. The museum could also receive items of yours perhaps to show off.
by having the player fix nightingale to return to its former glory, one feels a little more involved. Not to mention by using the pre exsisting building system the player could simply gather items from the realms and fix things that way, keeping a core feature of the game alive that has been lost towards the end of the main quest.

Another thing that could make the city more lively is actually helping survivors to return to nightingale. This would open the door to many new quests in all sorts of realms where you encounter people that may or may not want to return. After completing each quest the characters would pop up in nightingale, slowly populating the city again.

Not to mention Puck could help us again. (I'm a big fan of him, so i pray he returns somewhat XD)
It would certainly be a better sendoff from the game then simply being sent to a now rather empty and depressing city.