Regarding your cabinet the chances are there won't be a second one built but either additional line cards / tie pairs to allow use of 5th and 6th cards or an HD upgrade to move it from 288 lines to 384 capacity
Codelook only gives the cabinet being expanded message for 2nd cabinets. None of the HD extensions I've seen on single cabinets show as expanded on codelook.
His cabinet only serves 354 priorities though so that is extremely unlikely.
FTTC Available from 4th February 2014, being expanded by October 2018. Your area is enabled for Superfast Fibre but demand is high on your cabinet right now. This means you may not be able to order fibre today but we're working to increase capacity. Please check back for an update.
The cabinet is on the waiting list. This PCP has a waiters list for FTTC VDSL services. You may place an order which will be dealt with in turn.
The adslmax magic editing strikes again....
Where on Earth did you get that?? That's like a mashup of 3 different sites. That's a sentence from the BT Wholesale Broadband checker, a part from the OpenReach Where and When page, and a made up line that only shows on codelook.
codelook doesn't show your cabinet as being expanded?