GUESS what? Michael Jackson, having left his Hong Kong fans bitterly disappointed after cancelling his two August sell-out shows in the territory, wants to come here in December and fulfil the two aborted gigs. That was the gist of a late night telephone call received by garmento-turned-impresario Allan Zeman from Chile, where the superstar is currently performing as part of the South American leg of his troubled Dangerous world tour. The caller was Jackson's tour manager, Marcel Avram, who told Zeman that since Jackson had cancelled his Australian dates it had created some space in the tight tour schedule. He emphasised that Jackson was keen to make amends to his Hong Kong fans by coming over and performing. After all the hassle that Zeman and his two co-promoters had to endure the last time around he should, of course, have asked Jackson to follow the advice of one of his songs and just beat it. But Zeman is far too mild-mannered for that. He asked Jackson's guys for 24 hours to think about it before calling Avram up and saying thanks, but no thanks. ''My partner Andrew Bull and I sat down and worked out the logistics but really it was too much of a commitment to make at this stage,'' explained Zeman. He added: ''Besides, the way things have been going so far, the tour management can't be sure that Michael will fulfil the dates even though he has committed himself. And with the child abuse allegations hanging over his head there are other factors thatmight prevent him from going on with the tour.''