I think it would be a really cool retcon if jaina, sylvanas, garrosh, and varian were all considered to be in the actual fight with arthas. And the consider the aftermath: http://www.forwardleadership.org/index.php?/member/6569/ http://smartenergysolutions.co.nz/index.php/member/5119/

Jaina, it is only fitting that her magic give the killing blow - it would considered her frostbolt or fireball or pyroblast or whatever that delivered the final blow. After delivering the final magic missile, she collapses near Tirion, crying.

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After that, Tirion watches the scene between Arthas and Terenas, and the scene with bolvar plays out.
After that, Tirion watches the scene between Arthas and Terenas, and the scene with bolvar plays out.
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