So I'm not seeing how this is them changing things up from 2.0/3.0

[St0rmchild]

Where is the message that they said they would be "changing things up" ?

Two quotes that stick in my mind (although I'm currently unable to find the source for this, then again we are missing some (fanfest) live letter transcripts and there's been so many interviews) were that

1) The expressed intention to close the gap between the bottom and top performers
2) That Heavensward was considered a "safe mode" expansion and Stormblood would be a lot more ambitious

It's obvious that adressing #1 won't be by pulling up the bottom performers since they're removing incentives to improve (look, free gear you can use from dungeon, more free gear for making level 70!) -- and that #2 was just marketingspeak (since SB will launch with the exact same tiered gear treadmill we just finished in Heavensward. Please look forward to it -- again!)

[Zojha]

It's obvious that adressing #1 won't be by pulling up the bottom performers since they're removing incentives to improve[...]

Well, they've already discussed how they're intending to "bring the bottom up" - by making it easier to perform at a higher level. The idea is that if a top player can bring 2000 DPS and a bottom player 1000 DPS, they'll just make the bottom player deal 1500 DPS with the same skill level while the top player still brings 2000.

And that's why ideas such as permanent Enochian are tossed around.

[St0rmchild]

Well, they've already discussed how they're intending to "bring the bottom up" - by making it easier to perform at a higher level. The idea is that if a top player can bring 2000 DPS and a bottom player 1000 DPS, they'll just make the bottom player deal 1500 DPS with the same skill level while the top player still brings 2000.

And that's why ideas such as permanent Enochian are tossed around.

That's not bringing up the bottom, that's dumbing the game down -- and rather than bring up the bottom, it drags down the top; if it's that braindead to have 'acceptable' dps, why bother going the extra distance to perform better ?
That's a very slippery slope to go down ...