Don't worry, it's impossible for them to cut out the tea parties or the witches.
...Who knows what shape they'll be in for the anime, but it's impossible to leave them out altogether. There's really no reason for them to be left out in the first place, if you think about it.
As for leaving the meta-world out, that might have been stupid back when ep2 was released, but by now, it would literally remove 90% of the story.
Don't give up on the anime yet
