Ok, gave a quick skim to the save ...
IMHO we are in good condition, but there are some regards i can add:
- First and more important, we need more confu in the world

Brennus looks like a especially tasty target ( and no, I do not consider us as his #1 target ). Shaka as well ( he needs to get out of Theo ... ) and maybe Zara. This is not just because of the shrine ( it doesn't hurt, though

) neither because of the EP missions ( again , it doesn't hurt ), but because of the AP. AP has been a quite reliable way of getting cities without waiting for a revolt and we should expand on that as much as possible.
IMHO basically all of the front cities of brennus should have confu, from Shangian to Chartres ( this includes Camulodunum ) for us to be able to plug them out to us as soon as we want them ( for a example, snaketown already made it's part to reach other cities and could join our realm

)
- Brennus ... IMHO we are not the target of his build up ( atleast I do not think that the odds are stacked against us ) ... Zara and DG are fighting eachother and brennus hates both, so he might be thinking on a dogpile to one of them ( most likely DG ). To add , his army is all in his northern border, so, even if we are the target, we have some warning time.
Anyway, as a precaution, remove all workers out of the borders with him
- We need more ... spies

Only 38 ?
- OK , let me bold this :
I'M SEEING ONE MILITARY UNIT OF OURS OUT OF OUR BORDER in french territory.
- What do we do with SB? We can't spread religion to him to AP stunt on his last city ... and his stacking of units disallows rebelion . Warring with Ethiopia is probably unwise at this point ... atleast until Brennus shows his colors.
- On mission focus .... Camulodunum, atleast until we can reach Brennus cap. Chartres as well. Vermalion and Shangian should also receive missions until we can nag both via AP. On Ethiopia, definitely Adulis, as nocho says ( remember to sabotage that SB )
- Techwise ... after AL we should trail to Radio. Grabbing Eifell will make a big diference. That means Astro -> Physics-> Electricity-> Radio ( maybe a detour to Arties, depending on the way things go military wise. It is fun to see how much we got so far without any major warring ). No one will trade with us at this point, so it will be all self research