Possibility of reducing ex-wife alimony after her remarriage

Hi,

My husband and I are non-Muslim ex-pats in Dubai.

During my husband's divorce 3 years ago, his ex-wife demanded custody of their son and alimony monthly payments of 30K, which the judge granted.

He did not have money for his own lawyer. He runs his own small company and is now in deep financial debt due to the payments.

We have tried our best to keep up the payments (my salary supports us, as he gives most of his earnings to his ex-wife).

She has threatened repeatedly to have him arrested if he is late/short on payments or does his best to honour the court order.

She remarried 3 months ago, to a man that is financially well off, lives in a great house, goes on holidays and refuses to work despite being qualified.

She is now on her new husband's visa. We would like to understand if her remarriage can help us to reduce and renegotiate the payments to a more reasonable, sustainable amount.

He wants to support his child, but we face certain bankruptcy and his company is failing.