For those that hasn't heard yet, Microsoft is currently developing a fourth installation of the series.
The game will be slightly different from its predecessors in several ways.
First of all, it can only be played online. Even when you're offline, your town/city/metropolis will keep spawning units and gather resources. You can create alliances and wage wars against other players.
The graphics are different too. Looks like cel shading.
The trailer can be seen on the website.
http://www.ageofempiresonline.com/
What do you guys think?
Excuse my engrish.