I think their challenges will be different from the other TL couples in that they will be their own greatest challenge. Though fated, they are still two very different people, simply because of where they each are from. Emma’s world is very different from Killian’s – how they approach a relationship, their notions of courting, all will be growing pains for this couple…and also lends to some great and comedic storytelling. I think A&E know this and had great fun with it in the finale so I think when it comes to CS, as unconventional as their relationship is, so wil their challenges be.