h4 extension while h1 is in Progress

I'm in US on H4 (valid till September 11th 2013 and same for I-94).

I Applied for H1 and my case was selected in lottery and now is in RFE State.

1.)     Can I apply for H4 extension as my current H4 is will expires from September 11th 2014 while my h1 is in RFE?

2.)     If I get the h1 approval before H4 can I withdraw the H4 extension

3.)     Once I get the h1 approval (hoping before September 11th) what will be my status from September 11 to October 1st.

hey i am also in same situation … if you found any solution kindly share