No they're not, they're the current Y product with a few extra inches of legroom. Which you already get in ET if you book the front of the cabin with the 34" pitch.

For elites, nothing changes. The rest of pax will see 3-4-3 which, believe me, is horrible. Especially for long flights and if next to large people.

As said above BA tried it and the reverted because people hated it so much.