I’m sure ENG will come back stronger next WC. One reason is that it’s in SAF - one of the least spin friendly among WC venues.
But the main reason is that, England was stuck in the trap of continuity - they had a very successful LO squad and that team delivered as well (2 World titles), but problem with such generation is that they age together, too big figures to be dropped and players don’t retire either voluntarily. This is something we see regularly in soccer as well - that wonderful French & Spanish teams, Italy of 2010, Germany 2018/22…
This English team has some highly successful LO cricketers but at the wrong side of career - Butler 33, Moeen 36, Stokes 33, Malan 36/7, Johnny 33, most of the pacers around early to mid 30s, Adil 35+, Root 33 …. Few experienced players are good for a WC squad, but it’s a daddy’s army, if not grandpa’s!!!
I believe 7/8 players will retire after WC, few will be dropped and few average players (but excelled in patches) will be phased out - by 2027, they’ll be in a much better shape than 2023 squad.