Sorry if my post wasn't clear.
There are three questions we are trying to seek advice on here:
1) What is the chance of being denied re-entry if he visits home country with his valid visa?
2) If he chooses not to visit home country due to risk of being denied re-entry, can he submit (by courier) application to renew visa to embassy in home country? Is this allowed?
3) If he does 2) and visa renewal is denied, can he continue to stay in the US legally? (he has a valid I-20, and is actively pursuing his studies)
We are trying to figure action his best options regarding 1)travel, 2)visa renewal.
Thanks!