is an excerpt from John Eave's blog, showing a pic captured from the 2009 movie DVD/BluRay special features. All signs point to 725m and have pretty much from the start. At least, the majority of the signs say 725m. There are some that imply 3-400m, but again, that seems to be pretty much the result of bad editing/CG scaling, causing oodles of problems with the Trek Tech fandom (who didn't see THAT
I honestly don't know why people are still debating this.