Nothing specific to Tobia in the Third Imperium book. Very brief mention in the Campaign Guide for Deepnight Revelation, but it's all about an audience with the Duke and no information about the world. Don't know of anything else. The only relevant point in the wiki-referenced Traveller's Digest 20 is that it got overrun by the Aslan sometime before 1120 - which I always thought was a little silly (Glisten being overrun, more so), but the whole Rebellion and Virus canon was never my favourite...