please dont change anything to the game. its precisely what create the charm of it.
for example exploring with one villager and encoutering a lion
not knowing where your allies are at the beggining
not seeing them.
sometime u begin beetween two ennemi instead of 3 facing 3.
not finding your berries close to the town center everygames.
not being able to protect your villagers
when someone come with archers
behind thoses "problems" is the real fun of unpredictive games.
dont change the musics. just remaster them..but its so much nostalgia..
at least make an option to put the old ones.
dont put automatic farms.
back in the past there was a natural lag of 1.5seconde beetween order and realization because of network problem.
but it was usefull for balance purpose. not being able to escape from catapults
you should recreate this by putting a slow acceleration to units.
age of empire was a game of economy macro management. not unit micro management
please dont change that.
dont listen to all thoses with great ideas that ends up creating to a tasteless game because all frustrating/random/difficult part have been casualized.
what you can do:
make the forest able to grow again. or last longer.
more late game upgrades
make better graphics (good job on that)
better network code.