It looks like HTC has confirmed not only that the OG Droid Incredible will get Gingerbread, but it will get the newest version, 2.3.4, and it will happen pretty soon. Support documents have already been arriving on Verizon website, and the update is supposedly finished, so it should be happening with the next couple of days at the latest. There is good word that the phone is extra fast and stable with the newest version of Gingerbread, which is unsurprising, but welcome news. Let us know in this thread when you start seeing your update.
Source: IncredibleForum.com via VZW