I really like the cards in the second preview. It's nice to see things like the new Euron and The Sparr. The Seastone Chair is the kind of clunky utility card that I would like to mess around with, but there haven't been enough Greyjoy nobles to support it yet.
I love the reintroduction of Joust in a set with a melee focus. Going to back to my post above, Joust is one good solution to making sure things keep happening in melee instead of stalling out.
Arya's ability seems nice. I am interested to see what other abilities we get that can strongly affect multiple melee opponents at once.