The 04 and 99 should share the same video transfer. All of the Legacy Collections re-used the original DVD transfers save for Bride of Frankenstein.

I'm going to grab the 1080i and check it out.

As far as a silent version goes, that's pretty much lost just as the original ending is. I have always wanted Universal to give these films the restoration they deserve, and hopefully that tag ending will finally resurface.

The silent version is much like the original green tinted Frankenstein-lost to the ages.