I'd love to see flexible shards be able to go in any prefix or suffix. If I get enough crafting levels to hit 150, I should be able to craft pretty much anything that's craftable. Why, for example, can't I put True Seeing on a helm? There are helms with True Seeing in the game, so it's certainly possible. Same goes for Devotion. I can't craft it onto a helm, but there are helms in the game with Devotion.
Just an idea I'd like to see implemented.