The covers and promo pic for new single are here:
http://www.barks.jp/news/?id=1000111110
It's like a collage of her selfies lol.
The song for Doraemon is also here
https://www.youtube.com/watch?v=JM4oGenonjM called 360°.
One more thing, she will do a voice for a character called "wa-mi-" in the movie, first seiyuu job for her. She'll do fine I think.