We're playing what can be argued is the most ancient game between
humans.
The rules of mate selection were encoded into our genes millenia ago.
While I think it's fair to say that on a societal level we all know what
those rules are more or less consciously, individual knowledge of
these rules varies considerably. And those who know them
have only the basic tools with which to "win" the game,
those who know them and can adapt themselves optimally to fit
them are "winners" even more so.
And some of them seem to have been born with or absorbed
those tools unconsciously ("naturals"), others have to
learn them through repetition ("DJ/PUA").
The beta/gammas (AFCs and worse) are the ones that either
haven't fully decoded the rules or have, but won't/can't
do anything to adapt themselves to them.
So any "new" stuff seems to be in the form of rather
granular knowledge, such as: women like tests ("chick crack"),
magic tricks (Mystery), might possibly be pseudo-hypnotized
by triggerwords and phrases (NLP/Ross' "patterns"),
enjoy "kino" (attraction chemicals are released by physical
contact), etc.
I think any "new material" will arrive in the form of more
ideas such as I mentioned in the paragraph above,
or the same old stuff about creating and maintaining
attraction as before, but put into a more articulate,
readable or graspable style.