QF flights SYD-DFW with A388

Qantas initiated A388 service to DFW using the A388 on Monday replacing the B744s used since the service started (westbound flight stops in BNE on the way)
The A388 range allows for non stop to SYD in most cases anyway.
So where did the extra capacity come from? They are flying the route 6 days (maybe 744 on the other day?) and I think they may have dropped the A388 service SYD to HKG in favor of DFW.
Does anybody have any definitive information or observations?