Ritual Flames will probably stay the same. I've said this about the Fountains of Youth versus Wishing Wells: the GE equivalents of special buildings from events generally tend to be a little worse than the buildings they're based on. So the Terrace Farm has a huge footprint compared to the Bazaar, and the SSW is slightly bigger than the SoK. Now we've got WWs that can be shrunk down to a smaller space, while Watchfires can get a 50% increase to their defense. I think it's more likely we'll see a boost to the Oasis to make it more desirable than the Tribal Square than any improvement to the Ritual Flame. The Colossus is pretty good, but I agree it looks bad on low levels with all that scaffolding around it. With these upgradable buildings, I've mostly left a few upgrades in my inventory for some of these buildings to level them up when I advance an age. I probably won't do that with the Colossus though.