What are the possible outcomes in adversary proceeding?

I am a defendant in an adversary proceeding. I had an outstanding debt with a business that closed and who subsequently filed chapter 7. The trustee for that case is suing me. I have been negotiating with the plaintiff to get this debt paid and avoid a judgment. After much back and forth, we have finally agreed on a number that both sides can live with. The plaintiff’s attorney wants me to mail payment immediately and when I asked about the case against me being dismissed, she told me that a “formal dismissal would not be necessary and that instead a motion for the judge to approve the settlement would be filed in 4-6 weeks, as this is a big case with lots of defendants and there are several settlement negotiations taking place.” She “foresees no issues with the judge approving the settlement” and then the matter is “resolved and completed and no judgment can or will be taken against me in this case.” Is a resolved and completed settlement my only option here? Is it possible for me to request that the case be dismissed against me with prejudice? The way I look at it, I am satisfying the debt-not settling. I have filed no paperwork with the court answering the complaint (was never actually served to begin with) and am agreeing not to file a counter-claim although I have a fairly strong basis for one. The plaintiff’s attorney will not put any of the agreements we have arrived at in writing pending the approval of the judge yet wants the check mailed to her today. What guarantees do I have that the motion will be filed with the court and the trustee will do as promised? This is a lot of money to be handing over with no guarantee. Depending on the answers to the previous questions, if dismissal with prejudice is not an option and we must move forward with the settlement pending approval by the judge, can I send the check to the court directly to be handed over once approved?