If you have no checked in luggage and arrive from Schengen (not much experience with non-schengen here) then you are good. Just make sure that you check in online for the return leg. You enter the gate and re-enter again when boarding is announced.

Very rarely it happened to me (perhaps once in 150 flights) that we were transported from the plane by bus -- if this happens then you end up in arrivals area directly. You will need to run through security to make it again -- and I am pessimistic about the success. Bus boarding is usually early. But I suppose that AY flies a bigger machine that in normal circumstances gets a jetway.

If you need to re-check luggage then no chance.