So the event has been put to sleep this year and I have 16 LvL 10 Heroes Taverns. I had just started two new worlds, one on the US server, and was able to complete the Event on both. Very challenging when you don't have a lot of resources, but the quests were balanced enough that they could be completed. Having the 3 different options for the Hero was a real big bonus. Choosing between a good daily prize or gaining extra ground to get through the entire event was critical in the new worlds. Since I didn't have the bonus box from the previous event, I knew I'd be down one. The extra mile allowed me enough space at the end to pick up the missing piece by completing the 2nd round on the 2nd pass. In the last world, I was only able to pick up the last piece by finishing the entire event.
So I know it's impossible to please all the people all the time, etc, etc... But each player will also have different things they're focusing on and instead of an Event that's generic in a lot of ways, it would be nice to see the "Traveling Companion" choices available in future events. For instance in the Archeology event, maybe the Assistant gives you higher chances of getting tools, pumpkins, portraits, or tablets. So for each event, the player could customize what they want to get out of the event.
And to expand on the Townhall ability to have emissaries and take on additional benefits. Maybe past, present, and future event buildings as well as GB's could also gain "emissary" slots where the owner could assign "building Managers" that added their own bonus to each building. Building Managers might only be those currently available when you complete settlements, but Inno has given new Avatars as rewards, maybe these start coming with a skill set that adds to a building.
Looking down the road, instead of creating all new event buildings, expand the previous year's capabilities. The bonus upgrade now gives you 10 more expansion slots to take you to a level 20 Governor's mansion with a Governor & Assistant slot as an example. The mid-event Governor Assistant slot (male/female/exotic/Settlement emissary) portrait gives additional benefits to the building depending on choice. The completed event Governor (male/female/exotic) increases the building's benefits even more.
So even older Great Buildings that have been deemed by the community as too big, limited, wasteful of space, etc could gain higher regard with emissary/building manager spots. The Oracle could gain a High Priest/Priestess with two assistants and then 5 worshipers. The Seed Vault could gain a master Planter, Expert Gardeners, and Collectors, the Traz would of course have a Warden, Officer of the Guard, and Guards, each building it's own little way of naming the slots. As a side note, maybe each slot has a hiring cost associated with it, so when you drop an Avatar on it, that amount is deducted from your inventory. This would be done through the GB interface where you do your blueprints.
The whole player Avatar scheme could be redone so each portrait has benefits. The first free ones may only have a 1%/2% bonus rating, but then your event avatars go into the 5/10% for mid-event and then 10-20% for completed. So even if players don't want the buildings, they want Avatars that give their buildings a 20% boost.
Anyhow, back to my cities, my Vikings need some TLC...