About Ultima IX: Ascension

The tag note now claims this is conclusion to the UW series, but isn't this rather a conclusion to the Age of Armageddon sub-series? In all regards this seems unrelated to UW.

2014-04-13 (updated 2015-11-22)
Many things were intended by Lord British and the Origin team. As the team was being dismantled (or resigning) development continued until Electronic Arts put the alpha version in a box without rescinding any of the published intent. Post-release information from both Origin and EA continued to support most pre-release information. Origin and Lord British especially noted that U9 was the finale of all three Ultimas (Underworld series, Armageddon series, entire Ultima series).
Connecting the series without help from The Destroyer of Worlds (EA):
The Underworld series is fairly easy to resolve. As there was very little to connect UWI and UWII to begin with, all that's really needed is the Avatar and a few other Ultima characters in vast indoor/subterranean 3D environments. Ultima Icks has got that.
For the Age of Armageddon series, you need armageddon, Ultima Icks did that.
The Age of Enlightenment introduced Avatar, Virtues, Britannia, the companions, Gargoyles (as they came to be known), Lord British's would-be utopian rule, and much more of what Ultima Icks twists and destroys.
The Age of Darkness connections are admittedly thinner. The Great Earth Serpent (introduced in Ultima III) normally could have prevented the Guardian from taking the Avatar from Serpent Isle but failed due to weakness from it's long imprisonment. Allowing the Guardian to invade Britannia while the Avatar was trapped in Pagan. Had the Avatar (as "The Stranger" would come to be known) freed the Great Earth Serpent in Ultima III, the Guardian may have never invaded Britannia, then there would have been no Ultima Icks. But a stronger yet still thin connection exists. The Stranger's performances during the Age of Darkness caught the attention of the Time Lord. The Time Lord took human form just to observe the would-be Avatar (and offered a bit of mundane help also. although the Avatar could have gotten the same help from a normal human). Also, The Stranger (knowingly) meets the Time Lord for the first time in Ultima III.
It was Time Lord that brought the Avatar to Britannia for the final time (Ultima Icks). Also, the Time Lord in Ultima Icks basically tells the Avatar that they've spent a lot of time together even though the Avatar has only meet briefly a few times with "the Time Lord" proper. It seems Hawkwind was actually a human form of the Time Lord. As Hawkwind is a helpful surveyor in UIII
, it seems that EA may not have been the cause of merging these two characters. Just like all major Ultima characters, these charcters have a real life human counterpart, Roe R. Adams III. Adams sort of has two characters in the Ultima universe, a rarity (Richard Garriott also has two. Lord British of course. But he also plays himself in Ultima 9. You can find him locked up in Lord British's dungeon). Adams's involvement in the Ultima series predates the creation of both characters.