I still doubt it. HTC has two embedded 'brands' right now: One and Evo. We've already seen the one series, and today we saw the first of the Evo. They are clearly different brands with different missions. Frankly, the OneX design would have been totally inappropriate as an Evo, and the fact that HTC didn't use it proves that.
And people are forgetting that, with the Evo debut, HTC only has four new handsets for 2012. That's still far, far, less than last year.
Also, I think people aren't understanding what HTC meant when they announced the one series. Nowhere did they say that they would only offer the one designs, and nowhere did they say that there wouldn't be different designs bases on the one hardware. What they said is that they would be simplifying their lines based around a small group of software and hardware experiences. The experience you get on the E4GLTE will not be any different than the experience you get on the OneX, and THAT was the biggest issue HTC wanted to address.