A lot of the developers behind Dawn of Fantasy started off as scenario designers for games like Age of Mythology and Age of Kings. So these games and their editors did play a significant role in the outcome of our scenario design editor. I may be a little bias, but I've used the scenario design editor for popular RTS games like Age of Mythology, Age of Empires III, Battle for Middle Earth, Rise of Nations, etc. and I'd have to say that our editor far surpasses all of them.
There may or may not be triggers. It's just not a big priority with everything else we are working on, but we may have a couple basic triggers. With that said, the scripting language DOF is based around, Lua, is incredibly user-friendly and easy to master. A lot of games, including World of Warcraft, use it, and it allows you to do so much more than simple triggers ever would.
The editor itself is very easy to use, and the game will ship with all the utilities that the official scenario scripters use, so there's really no limits to what you'll be able to do.
For a very basic overview of some of the editor's unique features, head on over here