BA fly A350-1000 and B777 types to Las Vegas next summer - the A350-1000 will be Club Suite - see
https://www.aerolopa.com/ba-351
The 777 is more hit and miss, and will need more details (flight number and/or date) to be sort-of sure. Could be the 777-200ER, which has Club Suite - see
https://www.aerolopa.com/ba-77l
In any case, BA can swap aircraft to the old club world equipped ones (been there, had that done

)