I dont think them running their f-duct will make much of a difference tbh. It hasnt been too helpful for Ferrari imo.
Race again should be very close between Mclaren, Ferrari and RedBull! With Renault and Mercedes maybe joining in too. Valencia has all the ingredients to be good but the track doesnt lend itself to an exciting race but we will see.
I predict a 3rd Lewis win in a row with 2nd/3rd/4th/5th/6th being anyones guess.