I think you are far too optimistic in that thread.
While it most certainly can be the case that people will actually play the niches, there is at least an equal chance that people will revert to cookie cutter templates without the room for experimentation.
And lets be honest, I played from start till a little over NGE, and not once did I think to myself : "I really wish we had those carbineer debuffs right about now". Did you? Those things are not needed. They are nice to have, but most certainly not needed.
It is a real challenge for Basilisk and its Devs. The target audience is different from what it was during the launch of the game and there is a fair chance that decisions that worked 13 years ago on a playerbase of several hundreds of thousands of people are not the best choice today.
In fact, some of those choices did not work back then, considering the fact that virtually every 'dedicated' crafter or support character I knew was running at least 2 accounts.
This games player (or really character) driven economy needs a certain critical mass to be viable.
And that is why this possible wipe has me a bit worried. If too many people quit over this, we might have difficulty reaching that.
Luckily most people here, including myself, do not seem to be too upset about this situation.