Welcome to FT! All CPT flights next week are scheduled to be on the 77L configuration, which is a 3-class 772 (no First cabin).
Even if a 4-class aircraft operates the route, the First cabin would only be used if all Club seats are occupied, and service would be Club. 4-class aircraft with Club Suite (starting at Row 5) only have two rows of First seats, so there is no Row 3 or 4 on these aircraft.
Seat plans in the wiki here:
https://www.flyertalk.com/forum/brit...o-updates.html
Information on First operated as Club:
https://www.flyertalk.com/forum/brit...-aircraft.html