The content will be the same
One of my problems with the campaign leading up to Titanfall was the lack of any real information on the game. It took months to find out any details, and even then we only learned about the vast majority of its features a month before launch -- everything leading up to that was just nebulous hype.
That seems to be the strategy yet again with the delayed Xbox 360 port, as we're just now finding out a mere few days before its release that this version will run "above 30 frames per second" -- which basically means "not 60 FPS" in PR speak. Apparently the game will be identical outside of graphical limitations, content-wise.
If you're interested in the game and haven't played it on PC or the Xbox One yet -- Titanfall is a pretty fun shooter that didn't change the world or even revolutionize the genre, but I still enjoy playing it from time to time. Brace yourselves for "paid off" comments in 3...2...1.
Xbox 360 Update from Daryl Allison [Titanfall]