This reminds me of the suggestion - at one point - that they were planning on making the Enterprise-E another Galaxy-class by simply changing the decals on the filming miniature.
Not sure if this photo is real or Photoshopped but, either way, I'm very glad they didn't do this. I get budget awareness, but that would have just looked cheap and contrived.
Update: According to
this article, the "E" decals were allegedly added immediately after VFX shooting of the Generations footage was completed, prior to being put away into storage. I guess someone assumed that they were going to do another TSFS-TVH reveal (hence my "contrived" remark). It was changed back to "D" for the Christie's auction. No idea if it's true or not, but there's something, anyway.