BoA will appear on Exo's 90:2014 show I think next Friday (maybe the Friday after). They will discuss her career so far and she'll do the 'Only One' couple dance with Lay and Sehun. One of the Exo members will also recreate one of her past MVs.
Exo fans are typically quick to sub, so there won't be that long a wait for non Korean speakers.
I heard that Exo's Sehun mentioned BoA again in a talk show so I translated the little bit.
Question: Is there anyone with whom you would like to do a collaboration?
Sehun: I choose BoA sunbae. I danced with BoA sunbae once during her 'Only One' performance and I would like to dance with her again.
Shindong: That was a smooth and powerful dance. What kind of performance would you like to put on with BoA?
Sehun: If it's with BoA sunbae, then anything.