What exactly is supposed to be getting restored?

Almost the entire region was desolate for centuries if you're trying to imagine some ecological change should occur. Gyr Abania was a nation of merchants and mercenaries because that was the only way it could survive.

The city is intact. The Garlean takeover was described as near bloodless if I remember correctly because Gyr Abania was already in turmoil due to mad Theodoric.

Ala Mhigo isn't in a separate instance from the Lochs so it can't be restored Doman Enclave style. Even Doman Enclave never got a marketboard or inn (though it does have the Summoning Bell).

Restoring the trade routes that were developed over many years in the first place isn't something that's going to happen overnight, and certainly not within the couple of months that have passed since its liberation (SE deciding all of the games events have happened within the space of a year was a dumb move unless one Etheirys year is equal to 5 Earth years).

It would be nice to see more NPCs moving around in Ala Mhigo but that's really the only change that would make sense.