Remember, Unearthed Arcana is a concept test. Nothing in it is officially in the game unless it appears in a D&D book. #DnD

— Jeremy Crawford (@JeremyECrawford) April 4, 2017

If you have thoughts on an Unearthed Arcana installment, remember to fill out its survey—the best way to get your feedback heard. #DnD

— Jeremy Crawford (@JeremyECrawford) April 4, 2017

If we decide to move forward with something in Unearthed Arcana, it goes through development and playtesting before landing in a book. #DnD

— Jeremy Crawford (@JeremyECrawford) April 4, 2017

@mikemearls @JeremyECrawford Any chance of another Modern Magic themed UA anytime soon? Loved the original.

— Kageryu (@Kageryu777) March 7, 2017

What UA will be after the current round of material is a big, open question. Was toying with releasing my Gamma World conversion. #WOTCstaff https://t.co/FJed6uUcsX

— Mike Mearls (@mikemearls) March 8, 2017

@FlorenceStoriesCould a Rune Scribe attune to the Robe of the Archmagi? I ask as it was published post publishing of the DMG. as written, I'd say no on flavor grounds, but it doesn't break anything if you allow it #wotcstaff

— (((Mike Mearls))) (@mikemearls) January 7, 2017

@CresstianThe new Hide in Plain Sight dont need cover? still need it #WOTCstaff

— (((Mike Mearls))) (@mikemearls) December 20, 2016

@mikemearls Can you mention any UA ideas you've had but haven't had a chance to work on yet?

— John Appleton (@jaa0109) January 14, 2017

We definitely built the core 5e rules to support different genres, so I might have a (simple) SF game among my files. #wotcstaff https://t.co/LGt8iTSWAk

— (((Mike Mearls))) (@mikemearls) January 14, 2017

@Shrillbilly @jaa0109 any plans for a 5e version of Gamma World, or GW revamp in 2017? not in the near term #WOTCstaff

— (((Mike Mearls))) (@mikemearls) January 14, 2017