Of course, as long as your DM doesn't find out about the later printing of War Mage which limits it to 3 times per day.
It's not a revised version per se, it just have the same name and almost exactly the same abilities, along with IIRC the same fluff.
So whether or not it's actually an update is arguable. Solo and I had a very short exhange of veiwpoints on the matter
here.I'm almost always partial to Frost Mage and cold spell optimization, so for what that's worth, I'll give another vote to that option.
Especially if your DM is kind enough to grant you a modified Acorn of far Travel, as archangel.arcanis had the pleasant experience with.
Something like Sapphire of the far North or somesuch.
Also, Force Missile Mage and Argent Savant does what they say they will do decently. They boost magic missile.
However, in the end you've lost a caster level for a slightly better magic missile. I'll let you do the math.