Can my family travel to India while H4 extension in progress ?


My current H1 extension 1129 is approved until May 2018 ad it needs to be stamped if i travel outside US .

As this is under six months my company already submitted our H1+H4 extension and it was sent to USCIS in December 2017 .

Now because of some family emergency my wife is planning to go India , so my question is can they travel to India and get current visa stamped on passport which is expiring in May 2018 while their H4 extension is in progress .

also they are planning to come back in mid of march 2018 .

please suggest .