The appeals process is a long and difficult pathway.
I'm sure your immigration advisor has outlined the various steps.
The responsible ECM has time (usually up to 6 months) to review the decisions of the ECO against immigration rules and the submitted application.
The ECM has authority to overturn the original decision or to continue a defence of your appeal.
One the ECM has made the decision you will be giving a hearing date.
Interventions may be made at any time during the ECM reconsideration stage, and often are made. But cannot be made once the ECM has completed the reconsideration.
Everyone's case is different. It's difficult to give meaningful advice without knowing the wording of the original refusal letter.
Are you able to share that?
We've known cases here that were clearly wrong and unjust and yet UKBA pressed on, only to pull out at the very last moment just before the actual hearing.