Patience Tina, Patience. They only have what, 3-5 visions left for Bran, before he will most likely leave the cave. And i don't think they plan for him to do that before episode 8 or 9. So they have to stretch it out a bit
There has been rumours of a vision with young Robert Baratheon and Ned, probably before the rebellion, then there is the likely vision where he uncovers the mystery of why Hodor, hodors, Tower of Joy part 2, the big internet-breaking scene with the Night's King in the vision (could potentially be split in 2) and then potentially Harrenhal. After that Bran is basically done i think.
Then there will most likely be a big scary scene where they leave the cave. We have seen in the trailers from before the season that the White Walkers will most likely enter Blood-Raven's cave. And then there is potentially a scene after that where they arrive at the wall.
That is what, 5-7 scenes for Bran, for the remainder of this season, unless i'm proved wrong of course
