I'm not surprised Portugal won this tournament at all. They have a very young, talented team, and I could see this being the start of them winning more major tournaments.
The reason being is that I think they have the talent to win going forward in a much more offensive manner. They obviously proved they can win as defensively as they did, but I think they can change their shape and play a completely different type of game as well. The way they showed in this tournament is not ultimately what I will think they will be, even in the next world cup. They were a shootout away from probably winning 2012 and should have won in 2004. You could make the case this could have been their 3rd title.
They were one of my 2 or 3 dark horse teams going into this tournament, and while I am really surprised they beat France, I am not surprised they put themselves in this position. I thought they would do it the dominant way by winning their group and making it to the semis. I didn't expect them to do it this way, but whatever.
They're going to need some young defenders to step up in the coming years, but the core of Sanches, Gomes, Joao Mario, Carvalho and Silva is really, really nice.