The Brazil international indicated his desire to leave Loftus Road after the Rs' relegation in 2012-13 and hinted on July 1 that he could be set to switch to the Gunners but Rafa Benitez's side have stepped up their pursuit.
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"We'll look at what deals are on offer and if they're right for us and the player. Having Brazil's No.1 keeper in the Championship would be an interesting dynamic. We might see something happen."
The player's agent, Josias Cardoso, expects him to return to Serie A with Napoli and provide competition to Morgan De Sanctis but admits that a deal is far from done.
"It's not all done yet - there are many possibilities but there are some details to be resolved between the player and Napoli," Cardoso told calciomercato.it.
"When will the signature arrive? I don't know, it could be today, or in a few days.
"There has been some interest from Spain, but nothing concrete. The only two concrete tracks are Arsenal and Napoli."