Arcane leveling order 28/0/23 Guide's pick, untested
Arcane: Wand Specialization 2, Arcane Focus 5, Missile Barrage 1, Arcane Concentration 5, Arcane Geometry 1, Arcane Impact 3, Arcane Meditation 3, Presence of Mind 1, Arcane Mind 4, Arcane Instability 3
Frost: Improved Frostbolt 5, Ice Shards 1, Frostbite 3, Permafrost 3, Piercing Ice 3, Ice Lance 1, Ice Block 1, Shatter 3, Cold Snap 1, Fingers of Frost 2
With the Talented legacy perk every step comes up to five levels sooner.
Arcane, level 30 21/0/0 Tested in beta
Arcane: Arcane Focus 2, Improved Channeling 5, Missile Barrage 1, Arcane Concentration 5, Arcane Impact 3, Arcane Blast 1, Arcane Meditation 3, Presence of Mind 1
Level-30 Arcane build: Arcane Blast, Missile Barrage and Arcane Meditation, with Presence of Mind as the 21st point. Alternatively, for solo play take Arcane Focus 3, Arcane Impact 2 and Arcane Mind 1 instead of Presence of Mind, or stop at Missile Barrage and put 2 points in Fire's Incineration. Order: the Arcane levelling order, keeping this build's talents; Improved Channeling and Arcane Blast, which that order skips, go in where the tree allows.
Arcane, level 60 (projected) 31/3/17 Guide's pick, untested
Arcane: Arcane Focus 5, Improved Channeling 3, Missile Barrage 1, Arcane Concentration 5, Arcane Impact 3, Arcane Blast 1, Arcane Meditation 3, Presence of Mind 1, Arcane Mind 5, Arcane Instability 3, Arcane Power 1
Fire: Incineration 3
Frost: Improved Frostbolt 5, Elemental Precision 5, Ice Shards 3, Piercing Ice 3, Ice Block 1
Standard 31/3/17: Arcane Power on top of Arcane Blast and Missile Barrage, with Frost for Elemental Precision's hit and Ice Block. It can't also take Fingers of Frost (that would need 52 points). Beta theorycraft. Order: the Arcane levelling order, keeping this build's talents; Improved Channeling, Arcane Blast, Arcane Mind, Arcane Power, Elemental Precision, Ice Shards and Incineration, which that order skips, go in where the tree allows.