With the new Godzilla coming out, I noticed several Godzilla blurays on Amazon about to be released. (Aside from the Criterion version of the original Godzilla.)

Universal has released both of its Kong titles on bluray in English cut and dub only of course.

Sections23/Kraken-Rising has its three titles available on bluray as well; vs the Sea Monster, vs Hedorah, and vs Gigan. I can't tell if Sea Monster and Hedorah are going to be released with US dub, international dub, or both. They list the ratio as being the standard HD 1.77:1, when their DVDs have the correct 2.35:1 ratio, so this may be a listing error and the image may be 1.77:1 but with letter boxing to achieve 2.35:1.

Media-Blasters/Tokyo-Shock appear to be releasing Destory All Monsters and vs Megalon. But Varan and Frankenstein Conquers the World are available only on DVD still. And their discontinued titles don't seem to have a rerelease yet; The Mysterians, Atragon, Dogora, and Space Amoeba.

Echo Bridge has already released its bluray version of vs Biollante.

Tristar/Sony has the rest of their Heisei titles re-released on bluray as well. The two pack of vs Ghidorah and vs Mothra appears to have correct the aspect ratio to 1.85:1, but they do not appear to have the Japanese soundtrack still. I'm not sure if their bluray two pack release of vs Mechagodzilla II and vs SpaceGodzilla has the Japanese tracks either as they are not listed on the description. There is a two pack bluray of a Heisei and Millennium titles of vs Destroyah and vs Megaguirus, and again unsure of the language content. They've skipped GMK: Giant Monsters All Out attack and Against Mechagodzilla, which presumably those are scheduled for later. And are releasing a bluray two pack of Tokyo SOS and Final Wars, and again unsure if these have Japanese tracks on them. No listing for Rebirth of Mothra I and II, or even Rebirth III which we haven't seen yet, or the original Mothra (or its non-daikaiju DVD mates War in Space and The H-man). Presumably Son of Godzilla and vs MechaGodzilla I from the Showa era will appear in a bluray two pack later. And a Godzilla 2000 bluray is conspicuously absent, hopefully on the schedule for a release with Japanese language version.

Classic Media does not have any blur ays listed at all for any of their Godzilla titles, Rodan or War of the Gargantuas.