HTC tweet could mean that the HTC One max 2 is coming, not the HTC One M9 Plus
The entire tweet reads "Something HUGE is coming from HTC. Imagine [number][big thing] in space. And then [math term] that by [number]. #Madlib." If we take out the missing pieces we get [Number][Big thing][Math term][Number]. The first number should be "One" because this will be a top-of-the-line device. The next hint, "Big thing," is probably just telling us about the size of the device and is not related to the name of the phone. The "Math term" could be "max" and the second number should be "2" since HTC has already released an HTC One max handset.
So putting it all together we get [Number][Big thing][Math term][Number] = One max 2. Now let's see if the HTC One M9 Plus makes sense. The number could be "One" but M9 doesn't exactly strike us as being a math term. And "Plus" is not exactly a number. Let's look at it a couple of other ways. [Number][Big thing][Math term][Number] = One [M9 ?] Plus [Number ??] or [One] [M] [Plus] = [number] [?] [??] [Plus] [???]. Because of the use of the M9 name and the word Plus at the end, the HTC One M9 Plus name does not fit no matter how you slice it.
So on March 1st, we could see the HTC One M9 and the HTC One max 2 introduced by the manufacturer. We expect the phone to carry a 5.2-inch glass with a resolution of 1440 x 2560.
Thanks for the tip!