I don't believe there will be any additional updates that will make ADV more valuable.
There were two "problems" in the past that made ADV irrelevant: (1) development patterns for young players were observable and therefore predictable/projectable; and (2) $20M in HS/COL was roughly equivalent to $20M in ADV.
They addressed (1) somewhat by removing the ability to look at season to season development for players not in your franchise. You can still see where they are now, but not how they got there by looking at ratings progression through previous seasons. When you were able to do that, you were able to project where a prospect was going to top out with far more accuracy than ADV (which was really a "best case scenario") would give you. Now, you don't have that any more. If you want to get a good picture of the ceiling for a player's development, ADV is now the only tool you have to do that.
As for (2), I would imagine that a number of folks realized that you could "snapshot" your yearly draftboard into an Excel spreadsheet to capture projected ratings for draftees, and as long as you were only interested in pursuing prospects who entered the world via the draft (as opposed to IFA), you could go back to those projections rather than invest in ADV. This made ADV completely redundant for those folks. Now, with less accurate HS/COL projections, ADV is no longer completely irrelevant. if you want/need more accurate projections, ADV is your best or only avenue.
With those two things in mind, they have closed, at least somewhat, the two loopholes that existed in the game that made ADV irrelevant for many owners. WIS may not have made ADV a "have to have" thing, but they at least shifted the needle more towards the center rather than buried at one end of the scale. Any really, right in the middle is where it should be, as that's where the strategy comes from.