Just a little remark: I'm not sure the splash screen should focus on demonstrating new features... A good feature is a feature you don't even notice, leaving all the place to the picture, no technics.
(and if the new ones are usefull, they'll be used, won't they? ;-) The splash screen should talk about inkscape in general: drawing freely, community, quality, power of imagination, precision, etc...
But don't care too much about this remark; how much attention we pay on this 'rule' only depends on voters taste so is self solved ;-). And listing the new features is always a good thing...
Cheers, jfb.