H1B Transfer & Extension queries

[h1worker23]

Dear All, 

 

I need your advise based on my current situation in. 

 

I quit employer A and joined employer B and they have filed my H1 transfer on Aug 21st in normal processing only. 

 

My question here is : 

 

My visa is going to expire on Sep 30 2015, since i heard USCIS used to take 3-4 months to come up with the decision for normal mode and i would like to know that "Will USCIS extend my petition dates along with the transfer"?

 

Please do note that i have used only 3 years of my stay in H1B and also my previous employer H1 petition was valid till 10/2016 but i hope sooner they will revoke my petition. 

 

-Surya