The Dutch international became a Norwich record signing when the club secured his £8.5m move last summer but only managed to score one goal in 27 games as the Canaries were relegated.
Boss Neil Adams told BBC Radio Norfolk: “He’s been speaking to them but there are a lot of things in these deals.
“If it doesn’t happen he comes back into our squad.”
The 25 year-old was left out of the side for Norwich’s final game of the season against Arsenal, which confirmed their relegation to the Championship.
He had been a main feature in the club’s pre-season tour however an injury kept him out of last month’s Italy tour.
After his side’s 2-2 draw with Celta Vigo, Adams told reporters: “He’s got to make the right decision for himself. If it happens for him it happens.
“I’ve said many times, I’m not looking to offload players. He’s more than welcome to come back here if that’s his decision. Ricky is a great lad and has been no problem whatsoever.”
Meanwhile former West Ham and Portsmouth defender Gary O’Neil is set to sign for the Carrow Road club after being released by QPR at the end of last season and training with the side.
“Hopefully he will be joining us. There’s nothing to confirm at the moment,” said Adams.
“Hopefully next week we can get something moving.”
By Phil Wellbrook
