At some 60 per cent larger than its former self, the 510m² (5,480ft²) footprint is designed around zones tailored to the varying needs of different travellers.
The new wine room will let passengers enjoy 'wine flights' sampling a variety of wines linked to a theme, starting this month with Chardonnays of the World.
There's also an enomatic dispenser so that passengers can enjoy wines at what the airline claims is "exactly the right temperature".
BA has also given the dining room a boost so that trans-Atlantic travellers can grab dinner at the lounge and grab maximum shut-eye for the six hours to London.
A new 'boutique menu' created by executive chefs Gavin Mackenzie and Waylon Walker will include seasonal dishes and a new light and healthy ‘bowl food’ concept.
BA's tended bar dials up the swish-o-meter to 11.
If you'd rather be away from all the clinking and commotion, make a beeline for the quiet work area, which sadly looks more like a bland conference room than a series of private workstations.
Other changes afoot at JFK Terminal 7 include a refresh earlier this year for the exclusive Concorde Room, new first and business class check-in areas with direct access to Fast Track security, and more AC sockets at BA's departure gate areas for giving your travel tech a last-minute recharge.
British Airways' first class lounge at JFK Terminal 7 is open to passengers travelling in first class as well as Gold-grade members of BA's Executive Club loyalty program and their Oneworld Emerald equivalents, including Qantas Platinum and Platinum One card-holders.
Next on BA's lounge to-do list is an upgrade to JFK T7's Galleries business class lounge, while business lounges at Geneva, San Francisco and Johannesburg are also set for the Cinderella treatment.