Here's a partial report. I'll try to post the save within 24 hours, whether I've completed ten turns or not.
I'm playing for the conquest win, BTW. We could probably already have domination.
1840 (0): As some of you have said, this shouldn't take many more turns, though RL playing time may be another matter.

We can conduct a real offensive against the Celts now, instead of just dealing with crises.
I adjust our builds to produce seven more settlers immediately.
I position a settler to give us access to Verulamium next turn.
We shoot down a Celtic interceptor in the course of a bombing run against the Ottomans (1-0).
Oops, our position on the mountain uranium looks too strong to the AI now, and it isn't attacked. Perhaps it's the TOW army?
A tank in an exposed position defeats the attack of one TOW, then falls to the next (2-1).
1842 (1): We found Greebley Kabir so that we can bombard Verulamium, and then take the town from its garrison of just three TOW, destroying a fighter and capturing four artillery on the way in (6-1).
Hmm, the Celts have 38 of their 44 remaining riflemen in Noviomagus. In an epic battle, or maybe just a long one

, we take the town (also garrisoned by two TOW) for the loss of three tanks (46-4), generating two Great Leaders/armies in the process.
We sink two Ottoman ironclads and three Men-o-War (51-4).
Even with the TOW army removed, no one's interested in attacking our uranium mountain.
The Ottomans have an RoP with the Celts, clearly. Three Sipahis attack us in unexpected locations, but all retreat.
We foil a Celtic attempt to expose our spy.
1844 (2): We found Leeopolis to give us access to Richborough and Augustodurum.
We take Richborough from its garrison of eight TOW, capturing two artillery, two workers, and Magellan (59-4).
I have to use a lot of firepower disposing of Ottoman units which have moved into the middle of our Celtic campaign (using rails and the RoP), so we don't attack any other cities. In all we defeat 12 Ottoman inf, 8 Ottoman guerrillas, three Sipahis, five Celtic riflemen, two Ottoman ironclads, and an Ottoman frigate outside cities (90-4), also capturing an Ottoman settler. In the process we get our third Great Leader/army of the round.
Again, no attacks on the uranium mountain. I'll disperse the stack there now.
Four Sipahis and a Celtic TOW die attacking our cities. We lose a TOW (95-5).
1846 (3): There are about eighty Ottoman and Celtic units next to Richborough. I'd rather take cities this turn than defend Rich. by attacking, so I abandon it. I'm not interested in cramming Rich. with units and letting our enemies die attacking it because of the flip risk, of course.
We steal Amphibious War from the Celts (safe steal, 3324 gold).
We take Augustodurum, held by four TOW, and capture an artillery (99-5).
We found Ratabad to give us access to Lapurdum and then take the latter, held by three TOW. We capture an artillery and sink a carrier on the way in (103-5).
We take Monguntiacum from its garrison of two TOW, destroying a fighter when we enter the town. We lose a tank (106-6).
We found Troy to give us access to Gergovia, then take the latter from its garrison of four TOW. We lose two bombers and destroy a fighter when we enter the city (111-8).
We found Bedpur, as our first step towards Alesia.
Outside cities we pick off two Ott inf, an Ott guerrilla, and a Celtic rifleman (115-8).
We lose an exposed tank to the attack of a Sipahi (115-9).
1848 (4): We found Pikeyan, Vxma Tepe, and Arbela 2 to give us access to the remaining Celtic cities.
We take Agedincum, held by two TOW, and destroy two fighters on entering the town (119-9). We raze the city on tactical grounds, gaining two workers.
We auto-raze Segusio, held by two TOW, and capture eight workers (121-9).
We take Alesia, held by seven TOW, capturing three artillery, a worker, and Shakespeare (128-9). We generate our fourth Leader/army of the round.
We take Ratae Coritanorum, first destroying a galleon with bombers, then defeating the garrison of ten TOW (139-9). We capture an artillery and Copernicus. So: