[MAIN SPOILERS] So, Cersei wants to...

.. hire the sellswords from Essos. In latest episode she explicitly mentions that the group in question is the Golden Company. They have been mentioned trough both TV series and the books. While in the books they have a backstory that's just not the case in the TV show. Now, we feel like it's imminent that they will show up, but with only one episode left in this season and entire Season 8 just how much of an impact will they have? I don't think too much but I believe that they will have a part to play in reintroducing Daario Naharis back to the main story. How? Well, Cersei needs a lot of manpower and she will be greedy. In addition to hiring Golden Company she will also hire the Second Sons. Daario will want to get back to Danny so he will join the Lannisters as sellsword (to get the means to transfer to Westeros) but he will aid Danny after getting to Westeros, or after seeing her with Jon he might actually turn his back to her. Anyway I believe that there is a strong possibility that things will play out like this.