I'm a little late to the party, but we haven't we seen an Enterprise-A released already? I thought this was a rerelease, not a new ship. Is that right?
Diamond Select Toys have never issued an Enterprise A. Art Asylum did back in 2003 but for DST to release theirs, the ships will be going through some revisions to bring it up to spec with the likes of the Enterprise E, D, B and Klingon Bird of Prey.
My guess is that this will be a similar treatment to what was given to the Enterprise E all be it with relevant (Undiscovered Country) sound FX as the original USS Enterprise A from Art Asylum only featured ship FX and not character voice clips.
What we have seen from DST is the use of the Enterprise A mold. They used the same mold as Art Asylum's Enterprise A to create their Wrath of Khan USS Enterprise. The hope is that their Enterprise A is significantly better than their Wrath of Khan Enterprise, sorting out the issues had with translucent plastics and OTT light bleed.