Sorry to post this late, but I have some additional information about this story. Turns out this website showing a teaser image, presumably for a Trinity sequel, has been up since July 2007. The teaser image is actually for a game called Triumvirate and it was indeed supposed to be a sequel to Trinity. Try right-clicking the teaser image and look at the name -- triumv.jpg, which is short for Triumvirate.
Anyway, we know the Infocom trademark was picked up by Omni Consumer Products LLC -- the makers of Brawndo. Again, this teaser image has been frozen here since 2007, and I seriously doubt we will ever see the release of "Triumvirate" any time soon. This particular website is registered to Oliver Oliver Klaeffling, the guy who was in a legal battle over the Infocom trademark with Omni Consumer Products LLC. Hope this answers some questions.