THE future of Vietnamese refugees stranded in Hong Kong will be the focus of talks between United Nations and consulate officials in a conference scheduled for next week. It is understood consulate representatives of refugee resettlement countries will be asked to expand their quotas despite doubts many of the prospective refugees would satisfy the selection criteria of most countries. The meeting, which will involve a review of the quota system introduced in 1989 under the Comprehensive Plan of Action (CPA), is a preparatory session to United Nations steering committee talks to be held in Geneva in January. One of the major problems confronting the United Nations High Commissioner for Refugees (UNHCR) and the Hong Kong Government is what to do with a contingent of about 1,800 Vietnamese at the Pillar Point detention centre who are drug addicts or have extensive criminal histories making it so far impossible to find host countries for them to resettle in. Many of them arrived at the centre before June 1988 when a screening process to determine refugees was introduced. Prior to that, all boat people arriving in Hong Kong were automatically classified as refugees. Next week's meeting, scheduled for Tuesday, will be attended by representatives of the Hong Kong Government, resettlement countries, the UNHCR and non-government aid agencies dealing with the Vietnamese refugees and boat people in Hong Kong. UNHCR chief-of-mission in Hong Kong Jahansha Assadi said the meeting was important because it would be the last before the Geneva steering committee meeting in January which was likely to result in some ''interesting decisions''. He confirmed that the issue of long stayers at Pillar Point would be on the agenda along with the subject of repatriation grants. However, he said there was no proposal to further cut repatriation grants in an effort to encourage people to volunteer for repatriation. Mr Assadi said he was generally happy with the process of repatriation and resettlement and would be using Tuesday's meeting to update re-settlement country diplomatic officers on the Vietnamese migrant situation. In addition to Tuesday's meeting, there will be a further preparatory meeting on November 30 in Geneva attended by UNHCR chiefs-of-mission from the Asian region. Despite the reluctance of re-settlement countries to accept the ''hard core'' of drug addicts and criminals at Pillar Point, Mr Assadi said he was confident a solution to their plight could be found ''over the next year or two''. Unless a solution to theproblem is found, the group could be repatriated or face possible discrimination from Chinese authorities if they remain in Hong Kong after 1997. Under the CPA agreement, signatory countries agreed to take all the refugees who entered the territory prior to 1988.