Genasi:  Interesting they opted for Con, which is useful for everyone, but not Cha, which is a sorcerer stat.  Water genasi as divine casters, earth as front line, fire as wizards, and air genasi as rogues/monks.  No sorcerers this time around, or apparently swordmages (unless they come out with a new class down the line that works off Con).  Very different than 4e Genasi, and from the PF versions.  How are they compared to the 2e/Planescape versions?  A different take on the race each edition, or are we back to the original forms?
And do they have feats or other add-ons coming down the line is something I'd be interested in.  I liked the elemental tempest quite a bit, and there may have been a few swordmages designed with genasi out there.  I had a sorcerer who was rather fun, especially with the elemental options later in the edition, but that may be a season or two down the line.
Goliath look great.