Just some seconds ago I checked SKE48 Official Blog, and found something interesting.
SHAWAKO PERFORMED MANAZASHI SAYONARA!! And in Airin's position too! She paired with Masanya, btw.
And interestingly again, Akarin (Suda) also got a chance to perform in Nice to Meet you! along with Abiru Riho, Isohara Kyoka, Kato Tomoko, and Sato Mieko. Akarin in Shawako's position.
And in their blog updates, they mentioned each other and both are happy for each other.
Aah, I will go to sleep with happy thoughts, I think.