No, the HTC HD2 will evidently never die. First released in November 2009 with Windows Mobile 6.5, the device has been successfully hacked with every OS including Windows Phone 7, 7.5 and 7.8 in addition to Android.
For the present day, at least, the HD2′s repertoire continues to expand, with news coming in that Windows Phone 8 has been shoehorned onto the classic smartphone.
This feat has supposedly been accomplished by the Dark Forces Team, which is only fitting considering their long history of hacking not just Windows Phone, but the HD2 in particular.
The news comes by way of their official forums and is currently lacking details on how it was accomplished. Only a handful of photos showing what looks to be an earlier build of Windows Phone 8 running on the HD2 is given as evidence. The poster though is 'Cotulla', whose reputation is very well known in the hacker-mod community, meaning we can safely assume this isn’t a hoax.
Maybe someday we’ll see unofficial ports like this for some of the WP7 hardware that will never be officially updated beyond Windows Phone 7.8 (or even those not getting WP7.8 at all).
Source: DFT (Google Translate)