Will powers be augmentable?
In 3.5, augmentation is how powers scale with level. For instance, basic Mind Thrust deals 1d10 damage. Augment allows you to spend more PP to deal more damage (+1 PP = +1d10), with a cap based on manifester level, so that way a 15th level psion isn’t stuck with a power that only deals 1d10 damage. 3.5 powers were designed to be augmentable - if we don’t use that mechanic, we’ll need to figure out how to scale them so they stay relevant, or psionics won’t have much relative output at mid to high levels.