Even if they hit us with a 6-point deduction, which seems unlikely, all it means is that us and Boro will have swapped places in the table.
To put us outside of the playoff places completely, it would need to be 10 points or more, and there's no chance the punishment will be that harsh.
It's not feasible in the slightest for the EFL to impose any kind of sanction that would mean re-arranging or replaying any of the playoff fixtures at such short notice. Just not gonna happen.