TTOB will entre service later in the month im lead to believe.
As for the T3 departures, it will be the same as T1 departures now that are operated by airbus frames. The relevant frame will be based there for the day and swapped around during the night, it could also arrive on T5 remote have pax can bus over from T1 and vice versa.
just FYI T3 flights will be VIE AGP MAD BCN LIS and HEL with the MAD and LIS with a mix of 757 and the odd airbus
VIE will now be a 757 route and NCE moves over to T5 to become a mix of A32X/767