Don't worry. Besides the next movie is predictable, considering this one was a rehash of Episode IV. This is what will happen: The Resistance will establish a secret base on an ice planet, which will then be attacked by the First Order. Rey will begin her training with Jedi Master Luke on Ahch-To. Finn will be captured by Kylo Ren, and Ren will leave her training to rescue Finn on a cloud city. Then Finn will be frozen in carbonite, and Ren and Rey will fight again, in which he will tell her, "I am your brother. Search your feelings, you know it to be true".