A lot of teams, especially mid table, are strengtening well this year.
Stoke, like you said, did well in market. They continue their transformation, they got both strong and technical players. If Bojan will get back to the form he had before injury, as well as Ginkel, they can end up high in the table.
Palace did well too. Strengthened the CF position and Cabaye is massive.
West Ham has pretty balanced team. They improved midfield and depth in defense. If their forward are in form, I can see them challenging for EL. Payet is great player, same as Obiang.
Leicester added experience, I believe they won't go down this year.
S'oton pretty much covered all outgoings and made a profit.
Swansea strengtened the left side, Tabanou and Ayew good buys.
Villa and Newcastle both got some talented players, but I'm not sure how they're gonna perform. Villa lost 2 key players, got many decent but no one game changing which is what they need IMO. And Newcastle is a mess, they just buy more and more promising players and it leads to nothing. I wouldn't trust McClaren either.
So, my very amateurish prediction for 7th-11th place:
7-West Ham
8-S'oton
9-Palace
10-Stoke
11-Everton
12-Swansea
P.S. I like Palace, I don't think they'll finish so well but man can hope
