The press invites are devoid of graphics or clues and there are no posts to Facebook, Twitter or Vine either.
Despite the company's silent treatment, we know HTC to be working on a number of products. It is currently developing a smartwatch and is also tipped to unveil a Google Nexus-branded 8.9-inch tablet before the end of 2014.
The most recent report around HTC's future plans though is that it is planning to launch a new Windows Phone handset and that it will be based on its current Android flagship the HTC One
So it will have the same premium metal finish, the same impressive internal specifications, but it will run Windows Phone 8.1 rather than Android KitKat. Reports also suggest that this handset will be called the W8 rather than the M8.