So in semi-breaking D&D 5e news, WotC just announced two new sourcebooks yesterday:
1)
Guildmasters' Guide to Ravnica, which is gonna land in November, featuring the fan-favorite Ravnica setting from Magic: The Gathering (you know, the bigger WotC property).
2)
Wayfinder's Guide to Eberron, which features the semi-classic pulpy magitech setting from the 3.5e days. It's out now as digital-only, and is described as a prototype/playest material - so more things and changes (including the addition of the artificer class, as the first full official non-PHB class in 5e) are on the way.
There is also the
Races of Eberron UA, which is already part of the Eberron book, but doesn't have a $20 pricetag attached. Some cool stuff in there.
While I predominantly play homebrew D&D settings (indeed I have yet to actually play a game that takes place in a published setting...), I'm SUPER glad that WotC is FINALLY starting to experiment and branch out to other settings which are not Forgotten Realms (and even then, it's only been the Sword Coast and Chult, and not even all of the FR world) - so I hope that both books do well (Eberron more so), even though I imagine a lot of people are not super happy with that sort of cross-promotion between D&D and MtG and would rather have seen something like Dark Sun or Spelljammer in the place of the Ravnica guide - but there's a good chance those are on the way too.
(I know there was the series of the free Planeshift supplements...earlier this year? But the GGtR seems to be a step-up from that in terms of production value, or so I hope.)