H1 RFE No Update , L1 about to expired

Hi, I need some help.

I am currently in L1 B with current employer A, I applied H1B [COS] through a consultant Employer B

My H1 B got RFE on Aug 8, Employer B is preparing for response, still not submitted. They are saying they will submit this week.

My L1 B is going to be expired next Month [nov 2013] but I have i94 till 2015

I am planning to apply for L1 B extension ,                     

My Wife is in L2 and EAD till 2015 , my consultant [employer B] applied H4 for her also, she is working

Now My question :

a)      Shall I wait for some more time for my L1 B extension  [Only one month left], these days L1 is getting High rejection

b)      My consultant took almost 2 month for RFE response, still not submitted. Is this normal

c)       Let say if my H1 got approved how much time I have to switch my company , Oct 1 already got passed. I need to search for Project once my H 1 got approved, so how much time I have

d)      When my wife need to resign from her company , once I resign from Employer A or the day H1 got approved

e)      Let say My H 1 got rejected , so do I need to inform employer A about this

f)       Let Say my H 1 approval took more time , Shall I continue with i94 or apply for extension