Here is a log of issues that I've spotted that need resolved, possible problems in white necromancy, and possible improvements that could be added:
both minions and the player should be sharing experience but seems to be only that minions get cut of exp and players get no cut of exp for minion kills
Necromancy slaves should ignore friendly fire from player and fellow minions(of both black and white)
Mist elf necromancers should get higher odds of healing books
Command ui currently broken for commanding them at best can either blindly move target or cycle though targets
minion commanding should be a free action so it does not waste a turn to get minions focused on a target and attacking if they aren't already
maybe allow multiply targets be set for each minion per minion command
minions need some follower ai that allows them to attack like a normal monster and defend there master
minions should defend master if master is attacked
Allow minions to follow player if within 5 tiles or so of player when (s)he exits
Make sure minions dont turn on each other but add in their ai to avoid having allies in aoe if possible
add more commands like attack all hostile attack and attack neutrals
necromancer minions should be tweaked to be able to follow player form a few tiles from stairs to allow character to more easily bring thier minions along?
Needs a way to be able to tell the status of your undead/contructs
whisle like item or something that can be used by necromancers to summon their non - temperary undead to them with a minor cooldown (to gather after a teleport)
Prevent minions from wondering off or at least be able to command them to attack someone or at a tile without being in range of site for both
improve mana training done for using white necromancy so mana stack gets enough training to be regained properly (if not already as such) and if its not done for higher cost black necromancy then. Higher about of varienty for spell books closer to wizard with higher chance on scale of healing books and buff spells instead of getting lots of ice bolt as drops or at least have diferrent table if has white necromancy since all white necromancy can be healed with magic it seems(at least from my experience with my mist elf necromancer)
Allow player to give more items to minions (would make sense mobs pick up stuff all the time).

Another thing I've found for all necromancy minions they can reach levels of 160+ leading to insane stats.

Notes on white necromancy:
White necromancy minions only seem to have a chance to attack hostile monsters that are close to them and will move out of way sometimes to allow monster to attack player.
They sometimes like to path away from player (some of the minions might have worse player tracking).
When stone golem was attacking high hp targets I was not able to spot it using its breath weapon that it loves to use on character if turn hostile.
Minions Tested so far:Stone Statue (has invisible sight so has easier time following), Stone Statue, Humuculus