Thanks for making this thread and for all your previous work!
I have some ideas, which would be nice in form of union-plugins:
1) A karma and (quite infinite) pray-bonussystem for innos (and beliar) similar to Returning NB. It should not replace existing karma- and praying-systems from mods, it should just work aside them.
2) simple sneak-attack. if the hit NPC didn't recognize the player before her got hit, he should receive bonus-damage.
3) via gothic.ini configurable negative or positive bonuses for received learning points and health points at level up.
edit:
4) add some NPCs or dialogue options to existing NPCs, for additional training without upper limit. I don't care if they use the mod-added or vanilla Night of the Raven learning cost system. the main point is the option for unlimited extra training without upper skillcap, because many trainers from most mods have skillcaps and at high levels it would be nice to be free to invest even more learning points in the already 'maxed' out attributes, instead of investing them in something else.
5) the same as 4) but with perks instead of vanilla attributes/magic-stuff.