In a cool feature this year, not only can you now change each team's home stadium in the game, you can also rename the stadium specifically for that team only...eg: Fiorentina's default stadium is 'O Dromo' (one with a running track around). I switched it to a generic 'Stadio Classico' and was able to rename it to "Artemio Franchi" just for Fiorentina home games! I'm more than happy with this feature - you can even see what weather conditions and time of day features are applicable to each stadium when changing them!
Unfortunately, despite already downloading the FREE Santiago Bernabeu from the Marketplace, i can't seem to set a team's stadium to that...so Real Madrid are still set to play at 'Estadio Chamartin'

but i guess i can just rename it just for them!
Also i noticed that teams that have their own stadium in the game CANNOT have their home stadium changed nor renamed. Teams like Barcelona and Man Utd etc simply do not appear in the "Edit Stadiums" sub menu...hardly an issue though.