Ok, they could and I would like to see some of them also, or good recommendations on third parties that do this well in a way that can be cleanly separated from their game and into 5e if that is what I want. But your posts generally never actually bring any of these things up. It is nearly always one or two sentences along the lines of I do not like 5e and I wish Wotc never made it.First if all, I haven't commented on the artwork, and have no issue with its existence. So let's not connect my comments to that.
Secondly, there are many possibilities. Options for enhanced exploration and social challenges and general play, choices in PC abilities as you level, mass combat options, narrative mechanics, shared story responsibility, more granular skill use options, alternatives for things like healing, encumbrance, food, disease & poison, crafting, and even spellcasting subsystems. Expanding equipment lists and adding culture to the species/background/class axis. Bringing back the warlord (or something like it), as well as other potential classes like the swordmage.
All of these things either existed in a previous version of the official game, or in a D&D-inspired game or 3pp (often for 5e), and any of it could be part of WotC's 5e and pique the interest of segments of the fan base who currently feel underserved.
If these susbsystems became popular enough there is a very good chance that Wizards would make an official version. Though the question needs to be asked, why is an official verion needed.
I am thinking we could do with a live play version of @SlyFlourish. Someone willing to run a campaign with a mashup of the major 5e variants as included rules in a campaign.
So, in short, perhaps in the future, it may profit you more to tell us (relevant to the thread topic) what it is you want, who is doing something like it, instead of a generic gripe about WoTC 5e.