Wirtz, 22, looks set to join the newly crowned Premier League champions for a reported British record transfer fee of £116.5 million.
The playmaker was heavily linked with a move to German giants Bayern Munich before ultimately settling on Liverpool.
When asked about the club’s plans this summer, Kimmich cut a frustrated figure with their limited business so far.
Kimmich said: "You'll have to ask the club what their plans are. Of course, you have the feeling that we could do something – with Flo not coming, with Leroy leaving, with Thomas leaving.
“I was surprised that Sane is going to Turkey. I didn't expect that. But it's his decision and he'll have his reasons for it."
Bayern are currently playing in the new-look FIFA Club World Cup in a bid to be named the best side in the world.