HTC says 'something huge' is coming; could it be One M9 Plus?

HTC

While it's reasonable to assume that the tweet is meant to drum up excitement for the Taiwanese company's upcoming MWC 2015 press event, it isn't clear what exactly "something huge" means.

One interpretation could be the unveiling of the One M9, which is figuratively "huge" given that it's a flagship smartphone. Or, the company could also be hinting at a large device - are we looking at the One M9 Plus here? Seems less likely, as recent reports suggest the device sports only a 5.1 inch display.