Reus declared: "I would be very happy if Michy stays.
"He showed how important he can be for us. I hope we finish the season in a Champions League place.
"I'm in a good exchange with (Michael) Zorc and (Hans-Joachim) Watzke."
BILD says BVB can sign Batshuayi permanently with an offer of €60m.
After his brace, the striker said: "I feel very well here, but that's a matter between Dortmund and Chelsea ..."