My wife is in H4 currently and its valid till Oct 2009 . 4 months back she got an offer from a company and they filed for her H1 (cos)and we got the approval notice yesterday stating that she can work from Oct 1st . we don’t want to use that H1 at this point ,since my wife is pregnant and she prefers to be with the kid atleast for a year . so I would like to know what my options are …

option 1:

Do I need to convert her back to H4 by applying i539 ? but my wife already have her h4 till next year so not sure how i can apply extension ?

option 2 :
can she travel to India and come back showing her h4 at port of entry ?? will that revert her back to H4 ?? please let me know ?

Thanks
Badri