Not perfect, but if someone has a suggestion please only post it in short format. If you have to explain it, try to do it in some other thread or link to a thread in which it was discussed. Also, if you post an idea that was mentioned between the Last and most recent update of this list, please also post a link to the thread it was mentioned on. Well, except if it the Bug thread...
18.9.04
-make bloodmages more willing to use their slaves than gem-using mages their gems
Post#274072
-make the game show the Version network host is using
-summon XXX (unique summoning spells) should have chance of changing ownership of a unit when all of them are already summoned
(thread)
-new dome that does not block spells but tells you from which province the spell originated, possibly would only work if the spell got through other domes
-shapechanging activated by thing other than death/command
(thread)
-one-way shapechange activated when unit is made prophet
-artifact pretender granting artifact-status to the wielder or the ability to mod it
(thread)
-new pretenders
(thread)
-make "pool slaves" -command not take slaves from commanders making blood sacrifice or let them take their slaves straight from lab
-decay affects more units than seems appopriate by description, it should say that decay effects non-living creatures too
-rebalance vampire lords', wraith lords' and maybe Fallen Angels' abilities to summon allies (eg. by population death)
(thread)
-warning when commander's orders are canceled
(list of situations)
-more random casting/moving etc. order (for DomIII)
-mod command #stoneform making unit immune to petrification (Bug: Origenes is petrified when going from stone to stone)
Also, the guides and readme's seem to be unavailable/still in writing. Updated Modding Guide is high on the list, and readme-files should say which Version you need to update to the newest patch.