Throne of Eldraine will be officially released on the 4th of October. Dominaria, Core Set 2019, Ixalan and Rivals of Ixalan will leave Standard then, that is, a whole bunch of wizards, dinosaurs and pirates will rotate out of the format, together with some love-hate staples such as Nexus of Fate or Teferi, Hero of Dominaria.
|Set||Status on 4/10/2019|
|Rivals of Ixalan||Rotates out|
|Core Set 2019||Rotates out|
|Guilds of Ravnica||Standard legal|
|Ravnica Allegiance||Standard legal|
|War of the Spark||Standard legal|
|Core Set 2020||Standard legal|
|Throne of Eldraine||Standard legal|
Main staples and key cards that leave Standard
Many of the following cards are heavily played in Modern and Commander, therefore they’re likely to keep their value or even increase it over time. Sadly, many others will be far less appealing and drop in price -until, who knows, they rejuvenate under a new shell-.
Dual lands from all these sets also leave Standard, which means the ‘Shock lands’ and ‘Scry lands’ will be the ones to rely on.
Rotation proof decks
Decks like Mono Blue Tempo, Mono White Aggro, Orzhov Vampires, Simic Nexus and Jund Dinosaurs are likely to vanish from the Standard metagame. Other decks like Mono Red or Golgari/Sultai Midrange might face a deep re-construction based on new cards. However, a few other decks should remain strong after rotation and be able to survive with just a few tweaks.
Most Elementals come straight from Core Set 2020, which in principle puts them in a great position after rotation. The deck literally loses one card, Llanowar Elves, apart from the rotating lands. Granted, 3 colour decks might get slightly harder to play after rotation, but we already have part of the Scry lands, and the rest should come in with Throne of Eldraine.
Hero of Precinct One decks are also likely to remain competitive. Teferi, Hero of Dominaria rotates out, but little Teferi and many other multicolour spells will stick around. If you were playing Hostage Taker in the main, it might be a case of replacing it with Tomebound Lich.
Feather decks will miss Reckless Rage (and Adanto Vanguard), but should have enough tools to remain in the metagame. This is a rotation proof list, built assuming no new cards from Throne of Eldraine are added to the deck:
For as long as Arclight Phoenix, Crackling Drake and a bunch of blue and red spells stay in the format, the deck should remain quite viable. Here’s a list using no cards from the sets that are rotating out.