Great episode. I did notice a few inconsistencies throughout the episode, such as Annie's sudden appearance, but it didn't really bother me that much.
And so now the humans have regained Trost. And with that the second wall. Will the next episodes focus on Eren training his Titan form to pick up rocks for huge distances?
They seemed to imply that they would try and use a similar way to regain the lost parts of the city, so that they can also get to Eren's house.