@Silveras
How would you go about keeping the revealed state of your topics/snippets for the ongoing campaign, since you would end up with a duplicate of all topics? Would you then need to go through each one, one by one, to set the revealed state accordingly?
@Farling
I understand the idea of the Master Realm idea and reimporting back into the other realms for the ongoing campaigns, but if I want to input new data or improvised information from an ongoing session, wouldn't this be an issue since I wouldn't be in the master realm? would it be possible to import the new information into the Master Realm?
Why would reimport loops cause issue on the long run?
I have no ideas on reveal state. I expect that it will only become more of a headache in the future as reveal is intended to be "per-character" at some point, instead of the current all-or-nothing version. That will likely enormously complicate what it sounds like you're trying to do, although at that point you could maybe combine the Realms into one.
Updates can be a problem in part because of continuity errors.
If you're talking about separate groups operating in the same world under different GMs, then here's one example. Let's say that in Realm A, the PCs kill the NPC "Bob" on Day 10 of the calendar. But in realm B, the PCs join "Bob" as his friends/allies/employees on Day 11. Which one goes into the "canon" ?
Now let's say that it is a little less separated. Players in both Realm A and Realm B have heard the news that "Bob is actually a traitor"... so that snippet is revealed to both groups. But in Realm A, they have investigated and also found out that it is false information (Truth level = False). So now one Realm has a note "Players know this is false" and the other doesn't.
When importing the updates, somebody has to make a call how to handle that.
And a loop can occur when the same topic has different updates in different realms.. each import, if not watched carefully, can switch it back and forth from one version to another, or put the wrong version in place in one of the realms.
Exporting NEW content and importing elsewhere has far less issues (and is probably completely safe) compared to trying to propagate changes to existing Topics among multiple realms.
For example, let's say the "Master" realm had mentioned a region only by name, with few or no details. If that gets expanded for play later, adding the details to one of the realms and exporting to the others is pretty safe. If more than one realm is adding details, though, then that becomes more of a challenge to manage.