Per Tim Kawakami of the Bay Area News Group, while the two sides are still working out the number of guaranteed years, Iguodala's extension with the Warriors will likely be in the range of $8-12 million per season.
Warriors co-owner Joe Lacob told Kawakami on Wednesday the team would do "whatever it takes" to retain Curry.
Durant doesn't seem likely to leave, assuming he opts out, after winning his first NBA title this season and making a move to join Golden State last summer.
Keeping Iguodala at a relative bargain, if he re-signs, will make it easier for the Warriors to have financial flexibility for Curry and Durant. The 33-year-old remains a valuable asset off the bench for the franchise, ranking fifth on the team in win shares per 48 minutes (.167) last season, per Basketball-Reference.com.