I hated the four-foot filming miniature of the Enterprise-D. Every shot featuring that bulked-up, over-textured model screams, "Toy!"
I think it would be fun to see the ship shots renovated to use something that more closely resembled the six-footer.
there are a few shots, certain scenes where i think new effects could help. but overall TNG is fine as is.
It is fine alright.
Just not presentable in HD.