Exactly what I was thinking. PF1/2e allowing AoN to use ALL of their content and display it makes getting into the game and seeing all your options ridiculously easy. It doesn't have the best interface which could easily be expanded with a company that was paying to develop it.

What I really want to see DnDBeyond do is complete their Homebrew creator. It has SO many problems and doesn't even implement all of the rules from content WOTC releases (can't lower hit dice except by spending in short rest, some magic items do this). And I want to be able to create my own classes and item types like new weapons. And also some weird rules that aren't allowed like changing weapon damage dice.

And they could really lean into 5e's greatest strength: their 3rd party support. 5e being so popular means there's a HUGE 3rd party scene that's doing so much to keep 5e alive and fresh. DnDBeyond is just starting to embrace them now but they could really open it up as a marketplace in the same way they have the DMsGuild. Then 3rd party publishers could at their own leisure add their own content and sell dndbeyond licenses (or include them in their books) for their content. This would mean people who prefer to use dndbeyond's character sheet (it really is one of the best digital ones that integrate with VTTs, foundry's sheet is subpar sadly [haven't tried 3.0 yet]) are able to do so while using any 3rd party classes and content they wanted.

Right now, I buy 3rd party content and then add as much in as possible to dndbeyond but I can't do that for whole classes and I often run into roadblocks where I simply can't add in certain features and there's no automation for some things.