For me, that picture still generates more questions than answers. The huge space of nothingness between T1 and T2 Pier B is strange to look at, I'm guessing another pier will be added there before long. 2030? We can also see the corridor connecting to Pier C, would expect announcement of that at some point.
Would be great if the greyed-out area where the multi-storey lies is also converted into an extension of T2. But as other have mentioned, it's one for the future as there's no telling if there's a requirement for it yet.