1. Where is Alexandria going to find guns?
When Father Gabriel told the leader of The Scavengers that they could get anything for them to prove their worth, Jadis told Rick the one thing she wanted a lot of in order to get a deal done: guns.
There is a big problem there. Alexandria had nearly all of their weapons taken away by The Saviors. Even the things they found or tried to hide were taken by Negan and his men, making getting guns an even tougher accomplishment.
Rick has already turned his attention to this new development, asking the supply runners for Alexandria for information about where to look and where not to look for guns and weapons since they have scoured the area.
There are some options for Alexandria, but it will take a lot of work and a major breach of trust for them to happen. However, sacrifices have to be made and challenges are meant to be overcome on The Walking Dead.