The court case that will decide who inherits the estimated HK$100 billion fortune of Nina Wang Kung Yu-sum is unlikely to be heard until next year at the earliest. The date will be fixed in a month's time after further discussion involving all interested parties. Property tycoon Tony Chan Chun-chuen and the Chinachem Charitable Foundation are locked in a face-off over rival wills, dated four years apart, that apparently leave the entire estate to either one. Mr Justice Andrew Cheung Kui-nung, sitting in the Court of First Instance, indicated yesterday he would be hearing the trial, which will last for an estimated eight weeks, sometime after January. He hinted that he would need two more months after the trial to draft his judgment. Jonathan Harris SC, acting for Mr Chan, yesterday sought to have a trial date fixed for the hearing on the rival claims. In reply to reservations by Mr Justice Cheung on whether it was too premature to fix the date, he replied: 'A few months should be sufficient [for preparation] as these matters are sufficiently important to our client ... No doubt this is an urgent matter.' Brian Gilchrist, solicitor for the foundation, said his client would prefer a date to be set in May next year so the schedule of their counsel, Geoffrey Vos QC, could be accommodated. Mr Vos was the leading counsel who represented Nina Wang in her legal battle against her father-in-law, Wang Din-shin, over the will of her husband. Mr Chan claims to hold a 2006 will of Wang that leaves her estimated HK$100 billion fortune to him. However, his claim is disputed by the Chinachem Charitable Foundation, which says it was left everything in a will dated 2002. Apart from Mr Chan, Wang Din-shin and the government have also been named as defendants in the probate action launched by the foundation. Wang, chairwoman of the Chinachem Group, died from cancer last April, less than two years after she won an acrimonious, decade-long battle with her father-in-law over the estate of her husband, Chinachem founder Teddy Wang Teh-huei, who was kidnapped in 1990 and never seen again.