vaporware

 vaporware  is a product that is announced before its release, often with no particular expected release date, or perhaps nothing even partially developed, and is an anti-pattern.

Femometer
The Twitter account @FemometerInc appears to be tweeting a lot (2015-10..11) saying "Something is coming" or other expectant phrases when there is no indication that anything specific is coming on their home page: http://www.femometer.com