The city of Rostock was in a paralysed position when we last left it. However, with a partnership forged in backroom diplomacy and the recognition of a common enemy, potential for change was afoot...

Indeed, as the Hanseatic ships patrolled the coast of Rostock on the choppy waters of the Baltic, they could only look on and hope that the muffled noises of fighting within the city were beneficial. They would have to wait a long time, as crews were replenished over the months of skirmishing within the city.

Negotiations would be fruitless, as neither side was willing to concede, and felt themselves in a position of strength. That, and the fact that negotiations were liable to be attacked by one of the many other factions not privy to the peace talks made any progress from all sides largely ineffective.

However, come the new year after the conflict, the existing deal between the Hansa and Lambert Rode would be re-upped, and progress would begin to be made. Perhaps it was Fugger's men being tired, but many of the men on the ground would attribute it to Fortune's wheel finally turning towards them.

As such, the steady and small progress that was made would begin to build on itself, and Fugger would eventually be ousted from the city, but not with a great deal of damage being done to the city as he left. Despite that fact, the Hansa's partnership had managed to bear fruit; they would have to foot the bill for the repairing of liberated-from-Fugger-Rostock, in exchange for the city's pathway to rejoining the Hansa by 1510 at the earliest.

tl;dr: over a long period of time, the Hansa have managed to oust Fugger from Rostock. The Mayor, with his gratitude shown, has put the city back onto a pathway to rejoining the Hansa by 1510 at the earliest.