Is Stamping required for H1b Transfer ,when previous employer's H1B VISA is valid?

[KannaVK]

Hi All , 
I have stamped H1b VISA with XYZ company till May 2020 . My H1B transfer is going to be initiated by new employer ABC. I have plans to go to India in Dec 2018. Since i would have changed the company , do i need to go for stamping again in INDIA? 
I have plans to bring my spouse ( would be) in December itself. So can i get her Passport stamped with new employer ie ABC ( Me holding old employers XYZ VISA) 

PS: New employer is initiating PP , so i should be getting response by Sept 2018. Appreciate your help.

[pontevecchio]

You can use the existing visa along with the petition approval to return.

[KannaVK]

On 7/11/2018 at 2:58 PM, pontevecchio said:

You can use the existing visa along with the petition approval to return.

How about VISA for spouse ? 

[pontevecchio]

What is difficult about applying for a H4 visa for her? based on your H1 petition approval.