How kan Bran komma undan? [stängd]

I slutet av avsnitt 5 i säsong 6 i Spel av troner :

while Hodor holds the door to prevent the White Walkers from getting outside the heart tree's cave, Bran and Mira flee through the storm.

Med tanke på att

Bran is marked by the Walker and that the army does not fear the storm (these frozen guys live in this storm 24/7)

Hur är det förnuftigt att Bran har en chans att faktiskt komma ifrån sina förföljare? Är det för att vi kan förvänta oss

Hodor to hold the door for a very long time even after he's dead? I would expect the army to catch up on him very easily in the next episode.

Redigera: För att lägga till tydlighet,

at the end of the episode I felt like Bran and Mira managed to escape since they disappear in the storm. It was a relief in some sense. However it seems that there is no reason to expect them to have actually escaped for the reasons mentioned above. As clear from the comments, there must be an upcoming trick for them to get away. I was not asking for what the trick would be though.