Great news regarding the stadiums. Other stadiums I would like is Ali Sami Yen Stadium, Dinamo Arena (In Tbilisi, Georgia), Red Star Stadium (Belgrade), Nya Ullevi (Gothenburg).
Else, Players are the most important thing at the moment so player searching needs to go first.
Then if you have time you can make face scans to players that not has any scan/build in the game. With that you can suprise me because I won't do any faces until at least next version of this file is released. I suppose you have downloaded the file so you can choose yourself wich players you wanna make, but the real legend players (those with high overall in the file) is as you can understand the most important ones.