Mythos could work at the cavern where Voldemort hid the locket, but even then, the shape of the building and rockwork would be out of place.
Phase 2 is happenning its just a matter of how much it takes over, but if we lose something this good and get something much better in return, I wouldn't complain.
Teebin is right, we lost the dragons, everyone was sad, but now everyone is happier with what we have now.