As a Pokemon maniac who owns the Australian and US releases, have to say our artwork is the best so far. Yeah its the same as the Australian release, however they got a tin, not a steelbook. Here's hoping the inside and back are a little better then stock images.
For the discs in general, I would not give your hopes up too much. Picture and sound are not a mind blowing upgrade, however unlike the first VHS/DVD releases the films are in widescreen, not fullscreen, so parts like in the opening credits of the First Movie when Ash brings out Squirtle are restored. Second, the Pikachu shorts were removed in the other releases so very slim chance they're in this one. It could be down to the fact that the third one, Pikachu and Pichu, is sort of banned in Japan in the sense they don't want anyone to see or remember it (The narrator for that one got into a little drug problem, which a HUGE no no in Japan.). Zero extras in the other releases too.
That's said, I would not give your expectations too high on this release.
Wow, I mean woooow. Just yesterday I had the Canadian version in my shopping cart at Amazon, however I resisted temptation. I think due to the success of Pokemon Go, we may be seeing a lot of Pokemon.
The 18th (!) movie is also getting a UK release too, with a Blu Ray release that no other country aside from Japan currently has of the film, the only one for the dub, so hopefully maybe this can lead to more movies or even the TV Series as many have begged for.
Honestly the first three are the main ones to see...the others are "meh"
So so, I thought the 4th one (Pokemon 4Ever) was great, the 5th one is only great in the Japanese sub as the dub ruined it (Seriously, they added a blue tain to the picture which ruins some of the nice animation.). My favorite is the 8th film (The Lucario one.) but again only in the Japanese Sub as I cannot take the dub seriously to that film, and its also a lot of diehard fans' favorite too. The rest ranged from alright to average, with only the Hoopa movie annoying me as the dub decided to replace all the Japanese movie with very inferior dub music. @_@