[whatthemick]

I'm personally not a huge fan of the eventemitter for cases where an event is only ever emitted once (an sql query is done or similar).

For 2.0 of Sequelize we've moved almost the entire codebase to promises and will encourage users to interact with Sequelize with promises.

[prima-facie]

Promises and Events are not mutually exclusive. I can imagine a lot of scenarios where both would make sense. But as you said, it doesn't feel right to overuse the EventEmitter mechanism where it's not really needed.