I think what bites this series in the butt more than anything is the fact that it was about 13-26 episodes worth of content crammed into 7 episodes. They tried to make the format more like the mandoloran when it would have benifeted greatly with a more clone wars style format. This is very evident in the final battle or should I say lack there of. Where was Boba's muscle Fenn promised him and for that matter, where was the Pyke's so called army?
we needed like 5 or 6 episodes dedicated to introducing the Boba's hired muscle (and maybe the pyke's generals) and at least 2 maybe even 3 episodes dedicated to the battle.
Charecters and units that could have been brought in.
Boba's muscle
Boba's old bounty hunter buddies:
Why Didn't we see Bossk or Dengar? Heck maybe even Aurra Sing (Yes I know it's said she died in Solo, but we never saw the body. How many times has Cad Bane "Died" now. They should have been the first on Boba's list
Omega and The Bad Batch
Maybe it'd have given to many spoilers to the Fate of the Bad Batch, but I think it'd have been cool to see a grown up Omega and either a remanent or newly established Bad Batch Interact with Boba. Not to mentioned the varied skillset would have made her a useful ally and could have gotten boba more personally involved in the story.
Cal Kastis:
fan service I know but i'd been nice to have a follow up to Fallen Order.
Various mercs: Whether stomtroopers or heck survivng clone troopers thier needed to be more soliders vehicles and ships on the battlefield, somthing to give a sense of scale
Pyke forces:
Mara Jade/surviving Inquisitors
It'd be a balance with Cal being on Boba's side and it'd give some nice insight as to what happeneed to any Dark Jedi that survived the fall of the empire. Bonus points if we get a Mara Jade Cameo with hints of her turning to the light and meeting Luke in the future
Moff Gidion:
if your going to bring the mandalorian into this, you might as well have brought in Moff Gidioan as sort of the bad guy couterpart have it be an "Enemy of my enemy alliance."
Qira
have her be the big bad leader of the pikes and make the war as much a war attrition between Boba and herself.
Various Separatist droids and vehicles:
A clone wars style battle would have been nice. Give it a sense of scale and importance. it'd also make Tatooine a prominent part of something. Also, NO BLATENT SCENE LIFT FROM KING KONG!!!
that's just me though. What do you think?