Lorenzo Insigne will ask Napoli President Aurelio De Laurentiis for guarantees on investment and ambition rather than just a higher salary if he is to sign a new contract.
The captain and hometown hero will be a free agent in June 2022, as his current contract only runs to the end of the season.
Negotiations over a new deal have repeatedly hit problems and were also postponed by the club.
According to Sky Sport Italia, Insigne is preparing his list of demands after an initial proposal was made.
The issue is not just about his salary, but Insigne wants guarantees that Napoli will be ambitious and competitive going forward.
He is said to be reflecting on the offer and getting ready to request reinforcements to the squad, with further pledges going forward.
Insigne wants to commit his future to Napoli only if he can guarantee the club will aim higher than in recent seasons.