Here's what'll probably happen.
>DP Remakes announced in February 17, released in December
>games will be largely the same aside from the addition of Sylveon to the dex and Sinnohian Forms for, you guessed it, more Genwun Pokemon with no Megas or Crossgen Evolutions
>new Megas and Z-Moves in general, Marshadow gets an Awakened Forme or something while Magearna gets a Mega
>Rowan's Assistant becomes forced romance and appears more frequently to hold your hand
>Super Contests are basically copypasted from ORAS aside from the dancing segment which is omitted due to GF not wanting to make new animations for 800+ Pokemon, including Formes and Regional Variations
>Customization disappears again
>PokeRide is gone, meaning you have to lug around 2 HM Slaves again
>Cynthia's Ace is now Lucario, uses Mega Lucario while Garchomp gets a Z-Move
>Mesprit will automatically join you upon freeing it from Galactic's clutches
>Great Marsh is a regular route
>Battle Tree copypasted, Red/Blue are absent and replaced with Barry/Palmer because GF didn't want to make younger models
>Palmer mentions a Battle Frontier but plans were cancelled when Caitlin suddenly left and a proper replacement couldn't be found
>Postgame is same as DP plus Hoopa Portals with Literally Every Legendary in them, plus Darkrai is now obtainable without an Event
>no Platinum Episode, Giratina's just chilling in Turnback Cave holding the Gresious Orb
>PokeRadar can be combined with SOS Chains for even higher HA, IV and Shiny rates
>that one bitch with a Haunter still exists
>Iron Island is now a mandatory visit to progress the game, and Riley straight up gives you a Lucario instead of a Riolu Egg
>games only exist to be filler until Gen 8 on Switch