They posted a teaser pic for her solo (called "Windy") but there seems to be little to no buzz. Obviously people will get more excited once they hear some audio. However, it just seems like Soyeon truly on her own (no KDA, no collab), might get some kudos but very little direct interest. That's why I call her the female RM.
Judging from the teaser style I don't think it's a hardcore rap either. Seems more like a 'fun' song, such as Jelly, which is decent.