Cancellation of visa to take another offer while a labour case is running

My employer wants me to sign a cancellation form without paying any pending salary and dues. The total outstanding amount is 33000 AED.

I refused to sign the cancellation papers and filed a labour case against him. I have a job offer from another company.

What is the procedure for me to join another company?

My first hearing is due on 29th December; what happens in the first hearing?

Should I wait until 29th December or should I contact the Ministry again for the cancellation?

I strongly believe my employer will not attend the hearing. I need to cancel my visa and start working again for the new company.

Please advise.