Remi, who helped record the singer's debut album Frank, has already worked with her on several new tracks, reports The Mirror.
A spokesperson commented: "There has been some music written, recorded and done but details aren't forthcoming as yet.
"The diary is clear to really nail down the album for the foreseeable future and to allow some relaxing recovery time."
It is not known whether Winehouse will collaborate with Mark Ronson again on her new LP. The pair are rumoured to have fallen out following their failed efforts at writing the James Bond Quantum Of Solace theme tune.
Winehouse is scheduled to perform at this weekend's Isle Of Wight Festival.