Yes.
In anticipation of the next question, yes it will be a Huawei cabinet.
In my experience codelook doesn't mention a cabinet "being expanded" if it is just a Huawei having an HD extension fitted (fitting larger line cards).
The "being expanded" is only referenced if a whole new cabinet is being installed.
Of course it's an irrelevant point with regards to ECI cabinets as they can't have extensions added. They already contain 64 port line cards.