So how many factions are playable in campaign?

I'm a campaign person and hoping this game will be worthwhile.

I'm pretty sure it's France, Great Britain, Austria, Prussia, and Russia.

Are they going to release modding tools for this game? Because that would be cool if someone was able to make a bigger map like in Empire and add in more factions.

I don't know yet. I sure hope they do! It would make all of us at TWC happy.

There are already a bunch of factions, it's just a matter of editing startpos.esf to make them playable.

Search button is your friend.