Re: Guess who's back in town.
The news spreads slowly from one world to another. The only form of interstellar communication is to give a message to a ship to be carried to the destination. That always takes at least a week.
The X-Boat Network (Express boat) uses specially designed ships, capable of Jumping up to 5 parsecs per week. However, they tend to stick to major routes. The message arrives at the nearest major Scout base to the destination world, and is then transferred to a short range "local" service.
There are persistent rumours that a "secret X-Boat network" also exists, using Jump-6 ships, and restricted to various high-ranking nobles. So, if the Emperor dies, or something similarly dramatic, Duke Norris (as Sector Duke for the Marches) will know about it several weeks before anybody else, and can start preparing any measures he thinks might be necessary to deal with the emergency. Similarly, he could send a message to Capital, informing Emperor Strephon of the outbreak of war. Strephon would then have several weeks to prepare his plans, before the general populace found out about it.
Officials always deny the presence of such shadow network, claiming that their ability to respond to serious events as soon as the news breaks is entirely due to a good grasp of current affairs, and excelent contingency planning. They also point out that there are some crackpots who claim that there is a top secret FTL "radio" in every ducal residence, without being able to explain how you wrap a Jump field around the signal. :)
As for how fast news spreads... news services use the regular, scheduled X-Boats, so across space the news spreads slowly. Once on a world though, the news will spread as fast as local technology will allow. As a rough guide, Earth is currently at about Tech Level 8, so anything above that is going to have a global network (of course, global is relative - on a world with only a couple of dozen inhabitants occupying a research facility, the global network probably consists of somebody running about shouting, no matter what the TL is. :p )
There is generally no censorship. Once the word is received at the local news agency offices, it is despatched worldwide within the hour. TNS and other agencies take their freedom to deliver the news very seriously. If the news contains sensitive information, such as details of fleet deployments, etc, then those would normally be removed or toned down. "A task force comprising the 57th and 60th battle groups, and led by the heavy cruiser, Azhanti High Lightning has been deployed to protect Fornice." might be adjusted to read, "There are reports of large scale fleet movements in the Mora subsector."
So... in short, everybody on Vilis will, potentially, have access to the latest news on the situation. Unfortunately the latest news on the war, and the invasion of Regina, is about two weeks out of date...