个人理解:A) 可以在中国报户口,拿中国国籍, 申请新加坡PR B) 不强制新加坡国籍,但可以申请:以下摘自ICA网站: An overseas-born minor (child) may be eligible for Singapore Citizenship by Descent under Article 122(1) of the Constitution of the Republic of Singapore, if his/her parents meet any of the following conditions: 1.Male Singapore citizen by Birth who has a lawful marriage at time of minor's birth 2.Male Singapore citizen by Registration who has a lawful marriage at time of minor's birth and minor does not acquire citizenship of the country he was born by reason of his birth in that country 3.Female Singapore citizen by Birth and minor born on or after 15 May 2004 4.Female Singapore citizen by Registration and minor born on or after 15 May 2004. Minor shall not acquire citizenship of the country he was born by reason of his birth in that country 5. Male (who has a lawful marriage at time of minor's birth) or Female Singapore citizen by Descent has to complete an additional Annex to the applicati (more...)

impossible. 这种方案的可行性本来就在于中国不知道孩子改国籍了不明白可以去sgchinese上搜索一下，以前被讨论的热火朝天。 1.先入中国籍。 2.入新加坡籍。新加坡不要求小孩退出原国籍。 3.拿中国护照给小孩申请签证，来往新加坡中国时用中国护照。新加坡会给予签证（他们貌似知道这种小孩双国籍）。 如果你先入新加坡籍，怎样入中国籍呢，应该是入不了。

续签应该没问题,批多久就要问中国出入境管理局了.要是想一直呆在中国,大概要申请中国永久居民了吧...没有这个经验,不敢妄自揣测,还是跟官方询问比较清楚

楼主不会所有可能都想try一下吧～