Well another thing you need to keep in mind is the target audience.
When you add 5 Subklasses to every class....and include all spells, the game gets a lot more complicated.
More Options to choose for new players that are not familiar with dnd, and they said they are their target... so jeah. dont expect more, and i honestly wouldnt want more.
They also stated that we would get all of the PBH content. Now I'm sure they will fall short. But the subclasses we got now are too bare bones for the Cleric and Wizard. Cleric : heal, blast, or trick. Wizard: blast or buff and attack. I don't expect everything, here's what I expect (hope) will be added from the PHB:
Wizard Specialists: Enchanter, Necromancer, Diviner, Illusionist.
Cleric Domains: War, Tempest, and I hope for Death (DMG).
Rogue: Assassin.
Paladin Oaths: Vengeance, Devotion, Ancients, and I hope for the Oath Breaker (DMG).
Sorcerer: Draconic Bloodline, Wild Magic
Bard Colleges: Lore, War.
Monk Traditions: Open Hand, Shadow.
As for content outside the PBH and DMG, I'm ok if they just let modders add it. But my wishlist is: War and Gravity Wizards, Scout and Swashbuckler Rogues, Hexblade and Celestial Warlocks, Gloomstalker Ranger, Cavalier and Samurai Fighters, Oath of Conquest Paladin, Drunken Master Monk, Divine Soul and Shadow Sorcerers, Battle Smith and Artillerist Artificers. As for Tasha's, those subclasses are way, way over powered. I wouldn't allow them in a campaign I was DMing., without some serious nerfing.