And beside which... all 5E has to do is be more than 2E
as compared to AD&D, 3E and 4E, LOL!
No one is saying 5E and 2E are mirrors of each other... all that is being said is that 5E and 2E are more alike than 5E and the other editions. The two might only have 15% in common with each other... but if AD&D, 3E, and 4E are only 5% like 5E... then that statement for a lot of people is going to be absolutely correct.
I mean, I think it's pretty inarguable that the edition 5e most resembles is 3e. With the sole exclusion of iterative attacks (which were always a bad idea to begin with!), 5e is nearly identical to 3e with just a couple tweaks. Feats are now tied to class level, but they're still
there; skills are now gained chunky-style, rather than by skill points; spells other than cantrips no longer automatically scale (but you can still make them stronger). Even the cantrips are really just making 3e's Reserve Feats a general caster feature.
But, I think you can also argue that
despite 5e being more similar to 3e than it is to any other edition, I think there can also be room to argue that
of the WotC editions, 5e is the one that is closest to 2e. I don't personally think they're in any way closely related, based off the game design choices in each. The only thing that's even remotely similar IME and IMO is 2e's "Kits", but those were both MUCH more extensive and far more daring (for good and for ill) than 5e subclasses.
I wonder if ‘more daring’ means to release harder campaign settings? Dark Sun per chance? Birthright?
Would be cool, but we're never getting 5e Dark Sun.
That would require them to finally decide what psionics is. They're never going to do so, because the only way for them to create psionics rules is to pick some specific thing those rules are going to be. Nothing they pick will ever clear their mandatory threshold of ~70% of players, because there are
at least three distinct, large factions who have Strong Opinions about what psionics should be. So long as each faction looks at the proposed rules and hears, "Well, it
could still end up different if we just make sure
these rules don't succeed...", there will
never be success on that front.
Psionics will always be the albatross around the 5e designers' necks, because 5e has fully and exclusively committed to a practice that cannot produce psionics rules. They require major consensus
before iterating. This is not possible on a large number of issues. Therefore, they never will iterate, and thus, they never will produce any finished products, even though a reasonably large portion of 5e fans would in fact like to see rules for psionics.