The midfielder's current deal with BVB is due to expire in the summer of 2017.
"Ilkay is one of our key players. We'll talk with him in due time on the future, but we still have a little time," Zorc told Bild.
Gundogan, 25, has recently been linked with a January switch to Italian champions Juventus.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Bayern MunichBayern | 9 | 7 | 2 | 0 | 32 | 7 | 25 | 23 |
| 2 | RB Leipzig | 9 | 6 | 2 | 1 | 15 | 5 | 10 | 20 |
| 3 | Eintracht FrankfurtFrankfurt | 9 | 5 | 2 | 2 | 23 | 14 | 9 | 17 |
| 4 | Bayer LeverkusenB. Leverkusen | 9 | 4 | 4 | 1 | 20 | 15 | 5 | 16 |
| 5 | Borussia DortmundDortmund | 9 | 5 | 1 | 3 | 17 | 15 | 2 | 16 |
| 6 | Freiburg | 9 | 5 | 1 | 3 | 13 | 11 | 2 | 16 |
| 7 | Union BerlinUnion Berlin | 9 | 4 | 3 | 2 | 9 | 8 | 1 | 15 |
| 8 | Stuttgart | 9 | 3 | 4 | 2 | 17 | 16 | 1 | 13 |
| 9 | Borussia MonchengladbachBorussia M'bach | 9 | 4 | 1 | 4 | 15 | 14 | 1 | 13 |
| 10 | Werder Bremen | 9 | 3 | 3 | 3 | 15 | 20 | -5 | 12 |
| 11 | Augsburg | 9 | 3 | 2 | 4 | 13 | 20 | -7 | 11 |
| 12 | Heidenheim | 9 | 3 | 1 | 5 | 12 | 12 | 0 | 10 |
| 13 | Mainz 05Mainz | 9 | 2 | 4 | 3 | 12 | 13 | -1 | 10 |
| 14 | Wolfsburg | 9 | 2 | 3 | 4 | 16 | 17 | -1 | 9 |
| 15 | St Pauli | 9 | 2 | 2 | 5 | 7 | 11 | -4 | 8 |
| 16 | Hoffenheim | 9 | 2 | 2 | 5 | 13 | 19 | -6 | 8 |
| 17 | Holstein Kiel | 9 | 1 | 2 | 6 | 11 | 23 | -12 | 5 |
| 18 | VfL BochumVfL Bochum | 9 | 0 | 1 | 8 | 9 | 29 | -20 | 1 |
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