Something I've always been a little annoyed with in DDO.. If you wanna do cold? Sorcerer, and that's about it, to really push it via enhancements.
I was _really_ hoping that we'd see the more interesting and unique Star Pact with a focus on radiant/cold damage, and some very neat roll modifying/rerolling and stuff like that! Alas, it never came to be.. and with the advent of Dragborn, and their snazzy racial elemental affinities, it really makes me a little sad that there's not a bit more oomph for some of the elements..
Lightning you've got arti, druid, and sorc, just with enhancements and spell choices. Fire is all over the place - warlock, wiz, favored soul/cleric have plenty, even freakin' monks use fire spellpower, etc.; there's never a shortage of fire spells. Yawn. Acid is kinda closer to cold in being left out in the (ahem) cold, and Force is just kinda hanging out doing its thing all non-elementally. Druid can do some cold-ing, but have so few cold spells it feels kinda totally pointless.
But seriously, it'd be nice to see some cold damage passed around a bit more with spells/specs/enhancements builds before water savants..