Go back to India after i-140 approval

[Deepu R]

Hi, 

My I-140 approved with one employer and it is more than 1 year as of now. I want to take a break and go back to my home country(India) and then come back to US once my priority date is current(My Priority Date is Oct 2018). I may use a different employer to process my H1B to come to US.

• Are there any chances of denying my H1B if I back to US with different employer?
• Are there any chances of rejecting or any implications in my GC approval?
• Before I move to my home country, do I need to change my employer with whom I want to process my H1B when my Priority date is current? 
• Do I need to go lottery process? If I want to come back to US?
• What are the documents that I need to carry with me before I move to my home country?

Kindly suggest, what else I need to know.

Thanks in advance.