While it's true that Bran Ferren's VFX were inferior to ILM's, that usually gets cited as a severe problem with TFF when it in fact isn't. If for some reason they went back and replaced every VFX in that movie with the most stunning special effects 2013 has to offer, the finished product would still be a shitty movie with awesome special effects.
Let's face it: Nothing can make TFF better. Nothing.