A suggestion, especially with the new higher level caps, is to increase the skill caps, allowing greater specialisation. Now, at higher levels, everyone basically has the same 'stuff'.

Also, multiple combo options built into the skill sets would be nice. for example, now the enchantress basically has ONE combo: ice+fire. Why not add another combo, fr example a new skill combined with the 'lightning storm' power.
With higer caps on the skills (say, around 12 for each), then it would make more sense to 'specialise' one one or another type of power set.

anyhoo, just my 2 pp