Forum:Page for doubles/replacements

Does anyone think it might be an idea to have a page listing any time a character encounters their double/somehow characters from other timelines come in to the main timeline?

Kim in 'Deadlock' could then be added, Thomas Riker, Tasha in 'Yesterday's Enterprise', Miles in 'Visionary', etc. Perhaps with a brief write-up of how the change took effect?

Or is this too broad a topic/not useful?

Sorry, forgot to log in and which page questions like this should go to. Originally on 'Visionary'. AnonyQ 12:27, July 29, 2011 (UTC)
 * See Doppelgänger. - 18:37, July 29, 2011 (UTC)