"Are you ready for The Fall?" the developer tweeted today.
Nothing else was shared and the Eidos Montreal Twitter account has not tweeted since.
Publisher Square Enix registered a handful of Deus Ex: The Fall domain names in March, suggesting The Fall was the name of the next entry in the series.
If Square Enix is gearing up to make a product announcement, the company could do so next week during the 2013 Electronic Entertainment Expo.