I think a new tvc Yoda (from esb or rotj) must depict an utility belt over his cloak.
Other requirement would be a neutral facial expression (aotc Yoda figure shows a fighting expression), plus a better paintjob to match his skin tone.

His head in modern line is medium size, perhaps the most accurate.

Head dimension improved in tvc gamorrean version, cause potf2 figure was kinda "papaya head"; then it diminished and sculptors sharpened his profile.

When I was a kid and opened my vintage 4-Lom (Zuckuss) I remembered after putting off his coat and backpack, that his clothes looked someway Tusken for me. Even very similar color to the beige / creme of sand people outfit.
His shirt and pants resembled beduin style, kinda for the desert. Now the tlc version shows a complex armor over his pants, like the shinguards.

As the figure was naive, the paintjob added detail with the nose / mouth piece of the mask in brown, then tlc matched it silver for movie accuracy.

I took a  peek at my vintage ESB novelization, by Donald F. Glut. He narrates in the scene of the bounty hunters before Vader at the Avengerīs bridge that beside Bossk, there were two humans covered by scars, Dengar and Zuckuss.

This is the first evidence we had about the nature of Zuckuss; that he wasnīt  4-Lom droid

I donīt follow this extract as canon, neither early draft, perhaps was part of the freedom of the writer to depict the scene.

Hunt for Ziro: This chapter presented the most variations of hutt heads we can see. There was a Hutt gangster whose head resembled Wat Tamborsī; he spotted more profile, a nose and a head, Rapa Nui style.

The mother of Ziro was monstrous, an anti female character due to her voice and likeness.

Ziro was depicted kinda hermaphrodite, and his voice sounded between female and male, ambiguous.
About his head, it always was a Truman Capote derivation

Perhaps Ziro has represented the most update job on tattoos for a Hutt. If Lucasfilm wants to customize these aliens, it would be convinient to depict them with curious robes, like vests, hats.

In narrative there is  away to simplify the story, when it reaches the end, by eliminating secondary characters.
This is useful for detective tales, mistery, horror.

But we can hardly consider Ahsoka a secondary character. Her death wouldnīt disturb kids as the death of the toyadrian king (sorry, I donīt remember the name of this guy from the race of Watto)

Moreover, Ahsoka timeline hasnīt reached its top. She colud survive and perhaps encounter Shaak Ti on Felucia OF TFU, maybe know about Kota, or be trained by her.

If Lucasfilm killed this lady inside the animated style; they will miss the chance to expand her adventures in a realistic style (like video games as TFU2)

Vintage 4-lom, carded as Zuckuss shows nice detail for a variation of C3poīs body. Also his head was the most accurate for the period, his grey eyes were an effort of applying different tones of one colour.

another unusual feature was his red nose, wich made vivid the character.

When I was a kid, as I didnīt get any Bantha tracks or similar magazine, I ignored that 4lom was a droid, I thought he  was an insectoid, cause the depiction of his head looked a bit kinda organic. (I thought he was an insectoid alien in a C3po armor)

The tlc version, depicted his eyes more metallic like, more droid, in the modern versions we got the rust paintjob, kept also for the tvc release.

With all respect to Hasbro performance during the last years, collectors could regret the lack of completely new molds and sculpts.
In some cases they must sacrifice articulation for a better / more realistic sculpt

"Itīs a trap! or itīs a repack?"

Other errors on Han depėction are the narrow shoulders, and very thin arms. People are wondering if these figures are kitbashes or repacks.

A humble opinion: instead of kitbashes or repacks, Hasbro must correct sculpts and molds, like they did with the vtsc Bespin Luke, which evolved into the tvc Bespin Luke we have already bought.

These 2 figures improved the line enough
cool for their time
Vader head got updated on the evolution way, but still needs to be regularised in the flat rear side at the tvc line.

that year magnet hand version was offered at Brian Toys

Good rendition of battle damged Luke