Without knowing more about the academic subject of her studies, I would venture to say her chances of being approved for the F-1 visa are pretty good.
Let's not become pessimistic, Babu... There is no reason for that. Hope for good outcomes and only good will happen, don't you agree? But, yes, will be able to come back on H-4.
Only her remaining courses, i.e. the "final semester".
She will be eligible for OPT upon graduation on F-1 status.
Kindly be advised that the answer above is only general in nature cannot be construed as legal advice, given that not enough facts are known. It is your responsibility to retain a lawyer to analyze the facts specific to your particular situation in order to give you specific advice. Specific answers will require cognizance of all pertinent facts about your case. Any answers offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship.
Talk to the DSO. She should be fine.
This response is general in nature and cannot be construed as legal advice, given that not enough facts are known. Any comments offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship. You are encouraged to seek independent and private counseling for a complete review of your case.