That is what i'm surprised about,i mean they are not that stupid.I don't get it
Their marketing for this movie is really kittened up. No one is going to watch it expect the NH fanbase which judging from what we saw today is really a small portion of the Japanese fanbase. Their entire marketing strategy is "Hinata has feelings for Naruto and Naruto falls in love with her because reasons." And by doing this they're destroying everything that the manga and hell even anime filler episodes told us.
And yesterday they released that picture of the calendar showing Naruto holding hands with someone but not showing us who just a blank black screen and the word secret on top of that. Which contradicts all the advertising that they've done so far.
Because if it's Hinata than that is not a secret because they already released all the info on how Naruto falls in love with her and even an early screening where they showed the kiss. So Hinata can't be the secret because it makes no sense.
And neither does any of the kids because we already saw them in 700 so yeah that's no a secret either.
Right now I have three explanations. Either the calendar was done way before any of the advertising and spoilers and early screening came out or it's someone else behind that blank screen aka Sakura or they truly have no clue what the word secret means.

Which I've told you - time and time again - is dangerous! There will never be consensus, son, among those you have helped to ascend. They will all differ in their views of what it means to be free. The peace you so desperately seek does not exist.
These men are united now by a common cause. But when this battle is finished they will fall to fighting amongst themselves about how best to ensure control. In time it will lead to war. You will see.