Spillover effects from Visa Ban

Hi,

How to best confirm if there will be significant movement of priority dates due to EO ban?

I am currently I140 approved with 2012 PD with my current employer. If dates become current, I can file I-485.

Based on this, I can decide to change from my existing job to a new one.

Please advise.

There is no way to get any concrete information about future date movements.