I agree, a reconstruction would be nice. When I watched the original, it seemed to be deinterlaced with only half of the fields, giving it a jagged look. Also, I think a couple VFX fixes from the DE were left in.

(I'm specifically thinking of the shot of the Enterprise coming out of drydock, where the model's mounting pylon wasn't rotoscoped out in the original composite, and left a black "hole" in the drydock as it passed by. IIRC, FanFiltration's SLV has the DE recomposite where the pylon arm WAS roto'ed out.)