Level Syncing isn't the best solution

[Deceptus]

You have yet to show us the examples of other games that have indeed done it and left their overall player base as happy with the scaled experience as they are when doing content designed around their level cap toolkits.

Easy.

World of Warcraft: Timewalking dungeons queue. Do old dungeons where your character is scaled down but you keep your abilities.

https://wow.gamepedia.com/Timewalking

https://blizzardwatch.com/2015/07/17...mewalking-wow/

[NanaWiloh]

Easy.

World of Warcraft: Timewalking dungeons queue. Do old dungeons where your character is scaled down but you keep your abilities.

https://wow.gamepedia.com/Timewalking

https://blizzardwatch.com/2015/07/17...mewalking-wow/

WoW does not scale you down below 60 though that is the difference. Low level dungeons like Dead mines have already been given a heroic version for higher level players to run leaving the original for low levels. FF14 has already followed suit with its own variation in the form of places like Tam tara hard. What the OP and others want is most of if not all high level abilites accessible in the original dungeons themselves.