User blog comment:King Tyrant/Strange Package/@comment-5596770-20130224050539

I can't speak for everyone, but I think it's usually better to put the link brackets around a new item, even if you aren't going to create a page for it. I'm pretty sure the administrators get reports on references to pages that haven't been created, which gives them the opportunity to go and fill in the missing data. If you leave the trains completely unlinked, then noone will know unless they go review your edits.

In summary, I usually do:

"New Train'" instead of "New Train", even if I don't create the page for it. It will appear as a red hyperlink when you've completed it.