H1B transfer after max-out/i-140 approved/1-94 expired

[H1B9]

I140 is approved(since last 2 years) from last employer (Employer 1), Current i-94 is expired, H1b is maxed out and got fired from the employer (Employer 1). Got a new offer within 30 days and H1B transfer is in progress by Employer 2. Got RFE (employer asked me to provide only W2 and payslips). What are my chances of denial? If denied then what are my options? Please experts answer. Seriously in need of advice.