Welcome! I am new to all of this too. Wow, an 18 month waiting list, that's crazy. Glad that things are finally moving.
On my first consultation, they did pictures, I met with the surgeon and we discussed which option would be best for me and what the surgery would be like. She spoke briefly about pre op and post op. Then I met with the NUT, nutritionist, and she went into further detail about the pre op diet and post op diet. Then I met with billing liasion to discuss the costs. Someone in that group spoke with me about the 4 different pre op testings that would need to be completed: Upper GI, Cardiologist/stress test, blood work, and psych evaluation.
It all lasted a little over an hour and most all of that was talking... nothing actually happened other than weighing and taking my blood pressure. They sent me home with a large folder full of information.