I suspect I still won’t have time to DO anything with these, but as I find or recall ideas I have while on these painkillers, I like to publicly archive them.
So, the idea is a series of Class Plots. Specific ways the abilities and options of various classes can be worked into any existing storyline, to help PCs feel special. For example:
Barbarian: A race of manipulative puppermasters are aiding the Main Bad Guy (whoever that is in your adventure). They are invisible and intangible.. except to people in rage.
Bard: A major Weapon of the enemy is an ancient song that controls the minds of those who hear it, but which countersong works especially well against.
Cleric; An ancient rite of the Old Church, which can ONLY be prepared as a domain spell (self-scaling so its more effecting when prepared as a higher level spell)
Druid: A nature-based magical beast with an Int of 1 or 2 that is a CRUCIAL ally… but can ONLY be handled using wild empathy.
Fighter: A weapon forged in ancient days to help defeat the Main Threat (whatever that is), but can only be wielder by someone who has special Weapon Training.
… and so on.