Rosberg announced on Friday his decision to walk away from the sport, leaving Mercedes with the headache of finding a new driver.
"It's not my intention to interfere with Ferrari's internal issues," he told Gazzetta Dello Sport. "Besides, I don't even know if Sebastian really has the intention to come to us.
The Austrain also revealed that he has been called by a large majority of the paddock.
"I've been bombarded with phone calls," admitted the Austrian. "I've been called by 80% of the F1 drivers."
He then outlined the options that Mercedes have when deciding who will be their new driver.
"The first way is to consider having a number one and a number two," he said.
"A bit like Ferrari during the Schumacher and Massa era. That is, hire a driver that guarantees points for the constructors' championship.
"The second hypothesis is to promote our young drivers, Ocon or Wehrlein," he continued. "After all, other teams have given a chance to youngsters like Verstappen and Vandoorne
"The third way is to get back on the market in order to find another top driver," he admitted. "On Monday I will be in Brackley and I will a have meeting with Ron Meadows, Andrew Shovlin and a group of top-level engineers, and we'll start working to find the best solution.
"It's a new and exciting challenge. After all, even if we have won 19 races, this has been a really complicated season, full of hurdles."
Bahrain International Circuit - Winter testing