That should not be so bad, it is a private business not the government!
But we can have reasons to be doubtful.
5ed have been built during time of needs.
Now they are back on top, they can take it too cool, and mess things again!
They have concern now of large market scale, and expert players that we see here can be forget a bit.
I remember it but residum was too monolithic & still basically just GP. Finding xxxgp of residum was xxx gp of whatever residuum was for but finding 6 pounds of $specific general component or 100 pounds of a different one is going to be limited to their relevant umbrellas of spells rather than any spell. Having each spell have one off components listed only in the individual spell rather than having all spells drawing from a handful of generic pricy stuff makes it too difficult for anyone to realize on the spot without the gm sating "by the way guys that's used as the component in HINTHINTHINTTHISSPECIFICSPELLHINTHINTHINT". Think of the difference between giving players a large sum of diamonds everyone knows are needed for raise dead type spells & almost any other material components. Srttings like Eberron & Darksun could have their own lists & economies without needing to one off all the spells & such that way.
This is off the top of my head and I may expand later: Some of the things that I want.
PHB
Cover Levels 1-10 or 1-12 (save higher levels for another book)
Darkvision: Go back to Night VIsion and Dark VIsion
Races (expand later)
Separate the biological aspects from culture (and, in most instances, environment which can be a third choice of options)
Add Goblin, Orc, Lizardman to races
Tasha's Racial Ability Score Modifier change as sidebar
Subclasses at first level. If not, class variants at first level with skill substitutions and variant class abilities (see below)
Classes
Barbarian
variant: Urban/ Civilized Barbarian: There are examples of characters in literature and film whom are city-dwellers and nobles. Should provide optional modifier to class skill list and one or two Berserker features to reflect this.
Bard
keep full caster
variant: Martial Bard: gets Medium and Martial Weapons
add Colleges: Cantor (divine bard), Troubador (Roguish Bard)
Cleric
Additional choice at level 1 dealing with Armor and Weapon Proficiency:
Smaller genreal base list shared by all clerics: Spells dealing with Bless/ Curse/ Remove Curse, Communicating with deity (e.g., Augury, Divination), Planar Ally
Rewrite base class as non-spellcasting outdoor willderness warrior survivalist (AgenderArcee at Reddit/Unearthed Arcana and GM Binder has a good model class for this)