Now these bus changes haven't happened yet. I have let TFL my bus changes. The X72 would run between Castelnau and Roehampton. It would be an X Limited Stop service that's why it would be called the X72. The 283 would run between East Acton - Barnes Wetland's Centre. The 283 Shuttle Service would run between Castelnau and Barnes Pond (Only when the Wetland's Centre would be shut)
I am still awaiting TFL's approval to see if these changes can go ahead!