#4 To tease the idea of Seth Rollins joining NXT over many weeks
The worst thing you can do with a storyline is to end it before it can bloom to its fullest potential on TV. WWE has done it several times in the past, with the storylines they have abandoned mid-way through what seemed to be going well. The clearest example of the same is Rusev Day, a storyline that was discarded even when it was red hot.
What I'm trying to say here is that the question of whether or not Seth Rollins goes to NXT should be the prime focus of RAW and even NXT over the weeks to come. The uncertainty over whether Rollins will betray RAW or lead the charge against NXT should take center stage.
This would answer the question that everyone seems to be asking these days- is it finally time for Seth Rollins to turn heel?