Michael Jackson's father says the family will wait for the results of a second post-mortem before finalising plans for the pop star's funeral.
The 50-year-old singer died on Thursday after suffering an apparent cardiac arrest.
His father, Joe Jackson, told reporters in Los Angeles the ceremony would have "some private" elements but "not [be] closed down all the way to the public".
US media reported that there could be a public memorial event at Neverland.
The results of a first post-mortem will not be released for several weeks while toxicology tests are concluded.
The Los Angeles County Coroner's office said there was no evidence of foul play after a post-mortem on Friday, but gave no cause of death.
At an awards ceremony on Sunday, Mr Jackson said he had "a lot of concerns" about the circumstances surrounding his son's death.
US media reported that relatives were considering returning the body to Jackson's Neverland Ranch in central California, about 240km from Los Angeles, where it would lie in state.
California Highway Patrol officials were planning for any delays if a procession did travel there, but said they had received no formal information from the Jackson family.
On Tuesday, an all-day tribute was held for the singer at the Apollo Theater in Harlem, where Michael performed with the Jackson 5 as a child.
As thousands queued outside, about 600 fans at a time were entering the venue to listen to Jackson's music, watch a video tribute and leave flowers and memorabilia.
Confusion over will
According to the legal papers filed on behalf of the family, Jackson died without a valid will.
But The Wall Street Journal reported that a will was drafted by the singer in 2002, which divided his estate between his mother, children and a number of charities.
Jackson left three children - Michael Joseph Jackson Jr, known as Prince Michael, 12, Paris Michael Katherine Jackson, 11, and seven-year-old Prince Michael II.
On Monday, Jackson's mother Katherine was granted temporary guardianship of the children, pending a further hearing on 3 August to determine whether she will be granted permanent custody.