Increasing the Fellow NPC's level cap and especially the monster limit were welcome additions, but there's a couple things I'd like to see adjusted for Fellow NPCs, especially their AI.
1. Have on/off switches for certain magic spells.
Just like with AoE weapon skills, I'd like for certain spells to be turned off- specifically, enfeebling spells. If it's not possible for a one-by-one list of spells you'd like casted on you, I'd like an option for them to stop casting enfeebling spells. Even though there was an attempt to fix the pointless silencing NPCs do, they still do it on certain enemies, such as the Empty.
Furthermore, there have been cases where the NPC would not stop casting slow and paralyze on enemies that were immune to it, causing all the MP that should've been used to cure me to be lost. To avoid this, an option to turn off enfeebling would solve it without too much in-depth work with the AI.
2. Make NPCs use level-appropriate weapon skills.
There's really no reason she should be using Power Slash when she already has Spinning Slash.
3. Give Soothing Healer auto refresh.
I just find it odd Stalwart Shield has Auto Refresh but Soothing Healer doesn't.
4. Make Fierce Attacker more...well, fierce.
As far as I can tell, double attack is the biggest perk that Fierce Attacker gives, but Stalwart Shield gives that same bonus past level 50, so Fierce Attacker loses some of its edge. Counter's not helping much since...well, if I wanted my Fellow to tank, I'd use Stalwart Shield, once again.
5. Make trigger conditions for Blessed Radiance a bit less strict.
Just my own opinion because I think this ability is just so friggin' cool, and it sucks almost never seeing it. I can't think of a lot of situations where enmity between the player and Fellow will be balanced enough for both to be in red HP, so I think it should just be one or the other, possibly based on current class. As in, Healer and Attacker would use it when player is in red HP, while Shield would use it while Fellow is in red HP.
6. More armor and weapon options.
I'm shallow, and I like playing with appearances! I think equipping them mannequin-style would be pretty nice, but I assume this would take a lot of work.
Other suggestions are welcome. Thanks.