With Dragonflight, leveling in World of Warcraft is faster. Blizzard is significantly revising the necessary XP.
Leveling in World of Warcraft is a core aspect of the game – at least for part of the community, as this topic constantly sparks discussions.
Some consider any minute spent on the path to the maximum level and thus the endgame as wasted time. Blizzard occasionally adjusts the necessary experience points to raise a character to the maximum level – this will also happen with Dragonflight.
Because Blizzard dramatically reduces the necessary experience points in the range of level 50 to 60. You will be able to level up over 100% faster in the future.
What has been changed? In the Alpha of Dragonflight, the necessary experience points for leveling have been significantly altered. Between levels 1 and 60, 57% fewer experience points will be required.
This does not necessarily mean that every single level will go faster in the future. In the range between levels 10 and 31, the required experience points slightly increase. You will need 3% to 19% more experience points here compared to the current values.
After that, however, the necessary XP decreases drastically. From level 40 to 41, you need 47% less XP and from level 45 to 46, it’s even 59% less XP.
Especially drastic: In the current Shadowlands range, meaning levels 50 to 60, the necessary experience points per level decrease by 74% to 77%.
When averaged across all levels, this results in a reduction of about 57% of the necessary XP in the range from levels 1 to 60.
The colleagues at wowhead created a graphic that clearly shows the drastic cut:

However, keep in mind that these figures are from the Alpha of Dragonflight and may change before the release.
What are the consequences? The result is that the overall leveling duration from level 1 to level 60 will be drastically reduced. A reduction of 57% means conversely an acceleration of over 110%, which will particularly be noticeable beyond level 30.
Therefore, if you still want to level a character, you might want to wait until the Pre-Patch of Dragonflight or hope that there will be another bonus XP event.
Why is Blizzard doing this? Although Blizzard has not made any clear statements about this, the fundamental goal seems to be clear. The time players spend in “old content” should be kept as low as possible.
When comparing the values, it seems that Blizzard wants to ensure that characters in Dragonflight spend roughly the same time in “low-level content” as they currently do in Shadowlands. The leveling duration from level 1 to 60 should therefore be approximately equal to or slightly shorter than the current duration from level 1 to 50.
Also, keep in mind that the “Chromie Time” in Dragonflight scales up to level 60.
What do you think about this speed boost? A good thing? Or does this devalue leveling even more?