Changes that would be useful in this update.

[Kacpert25]

It's what is in the title, i.e. I will give changes to the skill tree, to the characters in general and other things that would be useful.

Wortox:

His skill tree is currently so good that it could already be released in the form it is.
My only complaint about his skill tree is knabsack. In my opinion it is average. It could have a slightly higher maximum damage or at least not be an early/mid game item. Could get some planar damage if you had any rift related item in eq.
And besides, the knabsack could be able to catch small creatures, as it was already proposed on the forum.

Walter:

Mix of Walter's hat with post-rifts armor (Please Klei, add it).
Adding lunar alligned rounds buff via brightshade helm.
An additional effect for stinger rounds so that they are not simply a weaker version of glass rounds.
Buffed shockcrap rounds.
Slight extension of the slowdown effect from honey rounds.
 

I don't have much to say about Woby. I will wait until changes related to it are introduced.
I will only add that, as @Picklesaurus suggested in his post, Woby should have her own treats used to transform her.

Remember that Walter can use melty marbles as slingshot projectiles? Yeah, me neither.
Anyway, since dreadstone rounds now have a chance of not break when hitting a target, maybe let melty marbles have a 100% chance of not break.
Then, players would be more willing to use this item as ammunition, rather than now, where it is more of a fun fact. It wouldn't be op, of course, because firstly, you don't usually have this item above the stack, and secondly, Walter has better rounds than melty marbles, which stack up to 120, not 40.

Wendy:

Possibility to heal lost extra hp on Abi if maximum life does not drop below 600 hp, or reduce the time needed to gain double life for Abigail.
Reducing the amount of morning glories needed to resurrect the butterfly.
Modified the Unyielding Draught and Distilled Vengeance effects on Wendy to make them a bit more useful.
As @Sapientis proposed in his post, instead of destroying itself, the parennial altar could be powered by something after using it.
Increased chance of Abigail's haunt.
Adding regular petals/dark petals/morning glories to the picnic castet crafting.
Possibility to put the morning glory in the picnic castet. 
Removing flower rot on a decorated grave.
Possibility of removing a grave without a headstone.
Possibility of filling in a dug grave (and perhaps the option of burying items in it).
Possibility to choose the type of gravestone when crafting (Please).
Additionally, crafted tombstones could be changed from being a structure to being an item. Wendy would then be able to craft gravestone kit to use on the skeleton.
Easier switching between Abi's regular form and ghestalt form.
Reducing the health threshold at which Abigail's ghestalt does not attack, i.e. from 25% to 20%. Moreover, Abi could beat below 20% if Wendy beat the target.
As several people suggested on the forum, Shadow Abigail's damage could be partially planar (e.g. 10 points).

The above-mentioned ideas are enough to make Wendy's skill tree ready for release.
(Wendy mains, please don't kill me for what I wrote).

Other:

Minning out thulecite with a pickaxe into thulecite fragments.
Blocking all character items that require resources associated with a special crafting stations by requiring them to be prototyped at those stations.
Adding dark tatters to shadowcraft plinth crafting and brightshade husk to brightsmithy crafting.
Adding drinking animations to drinks made in crock pot and potions from Hallowed Nights.