Yeah I'm worried as well.. can't wait for the site to come back up.

I'm not sure I caught all the trailer, so cant say for sure about the story. I did see a scene or two from dresrossa, specifically the end of the fight between luffy and mingo, it looked great and represented the manga very well.

you could choose 3 chara and switch mid fight between them. the demo had a roster of 8. 3d2y luffy, franky and zoro, croc, barto, kuzan, ace and sabo.
I played mostly with luffy as I wanted to charge to g4.

not sure about the complexity of the combos, as I didn't have much time with the game. but it felt similar to Jump, didn't play much of the naruto games so I cant compare as effectively. it has a few new things, I noticed some aura release, but have no idea what it does.

when I played with luffy, haki was part of the combos, not something u turn on and of. there might be charge moves that activate haki but it's just a personal wish lol

I do not have any pictures, and you wouldn't want any from my shit phone camera. I do have a picture of me hugging Agumon though X:

welcome!
I liked the gameplay, reminds me a lot of the recent Naruto storm games, and the Jump game that came out a year ago.
as for story, we didnt get to try it, only vs mode.

just came back from jump festa. was awesome, G4 can be used with normal luffy as a transformation, but will also be a first edition dlc as it's own chara.
I saw a new trailer that is not online yet, and can confirm Brook, Kid, Usopp, Sanji and Chopper as playable

Oh, don't get me wrong, I love this game's OST, it's great
I stopped watching the anime a few years back, but the show does have some OSTs and songs that can fit perfectly in a One Piece game, so I do get the appeal.
Might even try it myself this time~

Now I just have to see if I import or not… Vita version might get "digital only" treatment again in the US.. and if so I'm importing. digital on Vita is terrible.

Some games can play a playlist while playing on Vita and PS3 (and PS4 too I guess)
I only played KM2 on my Vita, and never tried it myself though (didn't know you could do it back then)
you just have to mute the in game BGM, so they won't mix together so technically, you CAN use original one piece anime OST

So is there any difference in moveset for amiibo characters?

There is no info on them being playable, but above the bubbles it just says: "The men of valor from the grand line, joins the war one after the other"
but it kinda sounds like it. especially since some of them are already playable from KM2.

Hope the US Vita version will have physical release, if not I'd rather import

Thanks a lot!
I wonder if I should just wait a year or so, as I'm moving to Japan. I just might get it then