It's kinda shame that this question is not receiving any answer when there are thousands of Nepali asylees in the usa now. i think they'll get visa if the children are under the age of 21 and unmarried. sometimes they might do dna test but most of the time they don't. common trend is about 3-5 months to get visa issued. they'll get derivative asylee status and can work live like asylees. . this is from what i've heard so don't count me for it.