Escape Zone now makes you wait 3 seconds no matter what, besides Point of No Return.

Only requiring 75% of players, it can be used to decrease times more in multiplayer..

but adds +3 seconds in solo.

Should all solo runs pre 3.9.5 have 3 seconds added to its time besides shadow raid and ozela?

Next update is going to have a millisecond timer, and an option to edit the escape method (3 sec wait/instant)

Will we be able to have an option to remove the 75% escape for 100% in zone?

Not sure about that, probably yeah