It includes a fourth age option (or slightly before fourth age, it didn't really explain.
I'll also be using the Dagor Ennor submod for Third Age. I leave on vacation for a week on the 12th, and I don't want to start this before that and then be gone for a week. This also won't officially start until after the 16th. I saw this done in an Aurora 4x let's play, where the person wrote a story of his game, took screenshots and let the community be involved and it was really popular. Not a Youtube let's play, but something with mostly screenshots and some words and then let people be certain generals and have them decide what the general does (except suiciding them.well maybe.maybe the general is crappy like a crusader kings 2 heir and its time to kill said general Dunno, haven't thought of actual rules).
To sum things up: I'll be doing an Aurora 4x style let's play of Third Age Total War for Medieval 2 Total War.