I've read multiple articles in the Korean media these past few days (English article) where Orser articulated that he thinks the next step for Yuna is the triple axel. It's well-known that one of the original reasons Yuna went to Orser was to learn the triple axel technique, but then liked training with him enough that she stayed. Around that time, however (GP and worlds 2007), she also developed a hernia in her back and missed the timing to learn the triple axel. She was also plagued with injury the following year.
At a press conference, when asked 'What would be Yuna's next step, if she were to continue skating?', Orser replied 'The triple axel.'
'We tried it 2-3 years ago, but not after that. I'm confident that Yuna could do it. We are already receiving high TES with the jumps we have, but with the triple axel she could score even higher.'
He also said that, considering Yuna's age, another go for the Olympic gold medal at Sochi was completely possible, but that it all depended on what Yuna wanted to do.
gaaah now I'm really excited and I hope Yuna keeps skating - I mean, I wouldn't blame her in the least if she retired now, but she's still so young and I feel she could do so much more if she kept with it. She hasn't really talked about retiring, other than the fact that she would definitely like a break, which she rightfully deserves. But Orser's already on-board of she wants it (and therefore by extension David Wilson). And who else to learn 3A from than Mr Triple Axel himself.