He will become aged 17 in October,2025, only 16 now and about 14 months younger than Mikey Moore
So its perfectly possible that LWB will make a few appearances for first team off the bench in 2025.
Mikey has played quite a lot this season (5 starts and about 10 off bench, 600 odd minutes played in all competitions), but imo is too easily brushed off ball - its to be expected as he's not fully grown yet with the physical development that goes with it. At his age kids develop physically rapidly so he'll play more next season with a more physically developed body, but I suspect his real breakthrough season will be 2026/27 rather than 2025/26. And that might be a balancing act between Son's decline and Mikey becoming a top first team player.
All youngsters are different, but its reasonable to expect that LWB progress will follow a similar path to Mikey - although I'd not expect LWB to play more than Mikey, some of whose starts were possibly due to injuries to other players.
LWB is a fantastically talented footballer, definitely in the same top category as Mikey, and maybe a touch unfortunate that their best position is a fairly similar position off the left. On the other hand 2 top players in one position would be fantastic.