Hi! You make some interesting points. However...,

A. Instead of increasing the cap on different currencies, I would like to have increased options for what I can spend the current currency on. This would be great for players leveling multiple jobs. Here's the possible run down for this idea:

1. Genesis = Minor materia and gear stat improvement options for ilvl 380 390. More tomes needed for the higher the grade of materia needed for augmentation.
2. Mendacity = Minor materia and gear stat improvement options for ilvl 360 - 370. More tomes needed for the higher the grade of materia needed for augmentation.
3. Creation = Minor materia gear stat improvement options for ilvl 330 - 350. More tomes needed for the higher the grade of materia needed for augmentation.
... and so on.
The materia stat improvement is for materia already melded in the gear itself in order to do it. Materia is still obtained through the current means. (Drops, Rewards, and purchases)

B. I have not really played Eureka Anemos that much, but felt it was a mindless grind to me. I did not see the rewards worth the trouble since I can get most of it through the normal content at a much faster rate. That said, I would <making air quote hand gestures> do Eureka if it had rewards like gear that I can war into raids. Who says a forbidden land can't have good enough gear for that. This can be applied along with your Wonderous Tales idea to get more people to do it.