H1b Transfer denied, valid I94(previous employer)

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My visa got expired on sept 30 2017.
My previous employer A filed extension and approved till Jul 2020.
Got offer from employer B, joined employer B on receipt sept 2017 before visa expired.
Employer A send a request for Revoke but it is under initial review(not completed yet)
In Dec2017 we went for DL to DMV, DMV sent a request to USICS asking for legal status verification. USICS gave response that legal status valid till the date july 2020(as per previously employer A h1b extended date).
MVD gave DL till July 2020.
After 8 months, current employer B h1 transfer got rejected.
Still revoke request of employer A is under review only.
Current employer B is planning to file new petition Under consular processing.
My questions are as below.

Can I stay in USA as per employer A(h1b extended date) but not working ?
What options I have without leaving country ?
Can I transfer to another employer based on employer A extended I-797
Can current employer B file a new petition without consular processing so that I don?t need to leave country?