There has been much speculation over who the Brackley-based team would like to see take over from the Brit, with a host of drivers being linked with a move.
The Austrian has also refused to rule out a shock move for 17-year-old sensation Andrea Kimi Antonelli.
Already on the books as a Mercedes Junior Team member, Antonelli has impressed team bosses with his performances in F2.
The Italian demonstrated his undoubted potential at last weekend's British Grand Prix, comfortably clinching victory - his first in the sport - in Saturday's sprint race.
Wolff hopes his stunning win in the rain at Silverstone will prove to be a turning point for the young star, and is backing him to keep improving as he chases a future seat in F1.