There's a whole lot of desert out there, and doubtless more secrets have been revealed in the wake of a world-ending event. If you're wondering why we put a little "*" at the end of our total cards, keep an eye on these initiates as the Hour of Scheduled Maintenance draws nigh . . .
https://www.forbes.com/sites/laurenorsini/2020/08/12/these-amonkhet-remastered-cards-are-coming-to-magic-the-gathering-arena-this-week/#4c32ad785c64
https://www.cbr.com/mtg-arena-amonkhet-remastered-red-preview/
Lord of Extinction
Perilous Vault
Sphinx's Revelation
Anger of the Gods
Chandra, Pyromaster
Shatterstorm
I missed Shatterstorm before. It is also in.
It's weird that they left green with no monocolored planeswalker. UG Nissa is in, but anyway....
https://dengekionline.com/articles/45648/
Jace, Unraveler of Secrets
Pact of Negation
Thoughtseize
Demonic Pact
https://www.destructoid.com/stories/exclusive-here-s-a-look-at-some-new-amonkhet-remastered-cards-coming-to-magic-arena-599687.phtml
Edit:
Wrath of god and Rest in Peace are in too...
https://www.eurogamer.net/articles/2020-08-10-revealing-the-white-amonkhet-remastered-cards-coming-to-magic-the-gathering-arena-this-week
https://magic.wizards.com/en/articles/archive/magic-digital/mtg-arena-state-game-august-2020-04
This part got me intrigued:
Will there be new cards for this release?