I am curious and excited about this, but does anyone know if there are any major differences between this and the Mill Creek BluRay collection from a few years ago?  Am I correct in assuming this collection includes Gamera the Brave?

• It does have Gamera the Brave, yes.
  
• It’s not cramming the eight Showa movies onto two Blu-rays.
• All of the movies have at least one English dub (Mill Creek did not include any for the Showa movies).
• Kadokawa’s new 4K transfers were used for the Kaneko trilogy.
  
• New audio commentaries for Gamera: Guardian of the Universe (Matt Frank) and Gamera 3 (Steve Ryfle and Ed Godziszewski), and presumably one for Gamera 2 as well (David Kalat is mentioned in the product listing). Not sure if August Ragone recorded more for the Showa movies or if they’re just reusing the ones he did for Gamera: The Giant Monster and Gamera vs. Barugon.
  

And that’s with most of the specifics still pending!