If Yu-Na repeats in Sochi it'll be down to her mental strength and nerve moreso than anything else. To have delivered in Vancouver as she did under the pressure just spoke volumes about her coolness even when the conditions were right to have a bit of a meltdown.
2Lutz-2Toe-2Loop would probably create some question marks, though. It requires a longer setup and you really need to do a triple jump or 2Axel after setting up like that, or else people will be underwhelmed.
I'm kinda sad no ladies have choreographed 2Lz as an element in their programs. It has been completely worth it ever since the rule changes for the 2010-2011 season, if you aren't already going for a totally maxed-out jump layout (7 Triples, with repeats of the hardest Triples, and 2 Double Axels). I still think Kostner should be doing a 2Lz-3Toe combo instead of that boring 3Toe-2Toe.
If Yuna can keep her nerves under control like in the SP today and max out her spin levels to 4, she'll have no problem defending that Olympic title in Sochi. I hope she does well on Saturday.
It's amazing how "2013" version of Yuna is very much like 2010 Yuna in terms of jumps and skating skills. Seems the only thing she lost is the Biellmann spin.
I wouldn't mind seeing her attempting a 3a and playing the 70% base value game. Her 2a is beautiful, and if she could get consistent eking out 3.25 rotations, then good for her. Then she wouldn't need the darned loop (not that she really needs it, but any 5th triple is a nice cushion to have)
Oh, and I'm glad that she got rid of the biellmann- leave that for the russian gumbies.