what are the chances of getting a home ticket in the next rounds of the FA cup as a member without acs from this oldham match?
Course you got a chance mate. But, the ACS will "guarantee" you a ticket. If you buy Oldham, then the next sale will go on previous sales (as it always does).
So, if we draw another lower league side at home (if we get through), then you got a good chance.
If we draw United/Everton in the next round (if we all get through), then you got little chance, unless you buy the Oldham ticket in the "non ACS" sale next week.