In straight translation, the show is called "Romantic Star" (浪漫星星). We don't have much on the synopsis other than that according to Director Pyo Min Soo (who directed Full House, Iris 2, The World that They Live In) it will be about a cold rich hero and a cute but bumbling heroine... um... I think he just described every other Asian drama.
Anyhow, currently Romantic Star is earnestly trying to cast for a Korean hero and a Chinese heroine. Apparently the director is having some difficulty because Director Pyo wants the heroine to be really tall and the heroine to be extremely petite. According to several Chinese news sources Director Pyo apparently also went as far as saying that he will cast a Korean actor who is more popular than Rain. I am hoping that there is either something lost in translation of what Director Pyo said or maybe he went on to smooth over his words because as it stands right now that was a pretty mean thing to say. Maybe there is something going on between Rain and Director Pyo the rest of us don't know about, but either way Director Pyo's words seems rather tasteless.
On that some what negative note (sorry!), Romantic Star is planning to start filming January of 2016.