Here's what's currently being pondered. Keep in mind these changes are not oriented entirely around "what about these new Eldar zomg!?" They are oriented around trying to minimize changes to the game, while enacting changes with a shelf life greater than 1 week (which a change to JUST Eldar would have in the era of constantly changing rules / detachment rules / etc. that we find ourselves in).
0-1 Super Heavy / Gargantuan of any kind (inclusive of iKnights)
Decurion / Guardian Warhost style Detachments, if selected, take up *all* your Detachment Limits
Stomp results of "6" hitting models that are not engaged with the Stomping model are treated as "5"
D results of "6" originating further than 12" away from the affected model(s) are treated as "5"
As an aside, I am beginning to find myself curious - Apocalypse was not a wildly successful selling item for Games Workshop. It was UNIVERSALLY stated that folks "wouldn't want to play it at a tournament or anything, but maybe for a pickup game if done right." Nevertheless, they have slowly pushed the game into being identical to original Apocalypse. When talking about toads (vs. human beings or some other more advanced animals), if you drop them into a boiling pot of water, they will freak out and depart it. If you put them in a lukewarm pot of water, then slowly turn the heat up to boiling, they will quietly perish.
It surprises me, in hearing the outcry for open battle-forged 0-restriction warhammer 40k from some quarters, how many toads are out there in our hobby.