Glad the tutorial changes sound good! Those will be out shortly.
* Some changes to ruins:
** Only town centers, barracks, archery ranges, and siege workshops leave building ruins that have any bonuses in them. All other building types leave no bonuses now.
** Grassy ruins now only have bonuses for two units, rather than five. This cuts down on the number of units with bonuses, helping to make them actually more unbalancing (in a good way).
* A couple of Greek mythological balance changes:
** The attack AP for chimera changed 3 -> 5.
** The attack AP for centaur changed 3 -> 4.