It looks like you're new here. If you want to get involved, click one of these buttons!
When I read about this game, on their official web site and on discussion forums like this, I get the impression that professions are what really counts when it comes to gameplay. The different races are more about the storyline and physical appearance, but it is the professions that will decide your skills etc. and thus your way of playing your character in combat.
So for all the Asurian talk about intelligence what really counts is whether you are an elementalist or a necromancer. The fluff and fiery stuff may vary, but the way you play your Norn or Sylvari is mostly decided by your profession.
How will all the talk about strenght, fate and intelligence in the Races of Tyria trailer play out in actual gameplay? I really hope they will surprise us with some ingenious Charr inventing new techniques to take down the enemy. Thus to show that the protagonists of the races denouncing strenght as a concept of physical brutality are mistaken, and that was is meant by the Charr in question is audacity. Just as one example.
In general I hope for more diversity within the different races than seemingly outlined in the Races of Tyria trailer. The dialogue between the protagonists of each race in this trailer, I find tedious almost childish. And I hope what race you choose will have an impact on how you play, not just on how your playstyle looks.