With what looks like is probably going to be at least a month between the new talents going in and the expansion coming out, talent options become more interesting for the PvE and PvP game when you only have 51 points to play with. Discuss (assuming the talents don't significantly change from here to final).
"Wild-card points" refers to malleable talent points within a build.
I'll kick it off with some mage builds:
18/0/33 - Rework of the basic frost mage build. You don't lose much from Arcane except Improved Counterspell (which, I think, has lost a lot of its value due to tripping the global cooldown), and Ice Floes is a nice synergy spell.
Wild-card points: (2) Improved Blizzard, (5) Magic Absorption.
10/0/41 - A deep frost build. This one I think is very nice since Empowered Frostbolt is a better Arcane Instability when you're this deep. Downside: you lose 15% of your combat mana regeneration.
Wild-card points: (2) Improved Blizzard, (2) Improved Cone of Cold.
32/0/19 - Arcane/frost build that dips down enough to hit Spell Power. Frost crits become absurd and makes crit extremely valuable. On the flipside, having to drop 1 point in either Arctic Reach or Frost Channeling hurts a lot, especially if you play Horde. Hell, Reacl probably isn't droppable as Alliance, just keeping in mind range-critical mobs like Zeliek. (Also, Arcane Impact isn't worth it until you actually have Blast.)
Wild-card points: (5) Magic Absorption, (2) Magic Attunement, (5) Arcane Mind, (1) Arcane Potency, (1) Arctic Reach.
10/38/3 - PvE fire mage build. +13.3% to all fire damage (+30.3% with Fire Vulnerability up), +9% fire crit (+13% to Scorch and Fire Blast), -6.09% mana cost to fire spells, Execute damage. It's a very juicy build. Most of the points in this build are set, the big deal is whether you want to trade off clearcasting for Combustion and/or Empowered Fireball.
Wild-card points: (5) Arcane Concentration.
37/14/0 - the pre-expansion Scorch into Clearcast -> fire super-Arcane Missiles gimmick.
Wild-card points: (5) Magic Absorption, (4 and 5) Arcane Focus, (2) Magic Attunement, (2) Improved Mana Shield, (2) Incinerate.
0/23/17 (10 unspent) - Elementalist rework, assuming your main nuke is Frostbolt. Playing with Fire gets you up to the same damage level as 28+/0+/13+ builds, plus you can easily path down to Blazing Speed.
Wild-card points: (1) Pyroblast, (10).