In the hours before Pakatan Harapan is scheduled to reveal its Malacca state election line-up tonight, the question remains whether it will partner with Bersatu in an electoral cooperation.

Sources said the coalition's top leadership was still discussing the form such cooperation might take, amid shifting political alliances that have seen PAS, Bersatu's traditional partner in Perikatan Nasional, forge an electoral pact with BN.

"No decision has been made yet (on cooperation). God willing, it will happen, but the form of cooperation will depend on the Harapan presidential council's decision," a source close to Harapan who declined to be named told Malaysiakini.

An internal Bersatu source also confirmed that there had been no further developments.