Tales from the Yawning Portal, is the new book announced recently by WotC promising "seven of the most compelling dungeons from the 40+ year history of Dungeons & Dragons. Some are classics that have hosted an untold number of adventurers, while others are some of the most popular adventures ever printed. For use with the fifth edition Player’s Handbook, Monster Manual, and Dungeon Master’s Guide, this book provides fans with adventures, magic items and deadly monsters, all of which have been updated to the fifth edition rules."
I can't but help wonder how the Classic Modules Today project launched last February with WotC's permission on the DM's Guild web site contributed to the release of this book? Probably just good timing. At 38 completed conversion guides (and growing) of classic 1e modules released to date at DM's Guild I've definitely seen first hand the thirst for original adventures for those playing with 5e rules. Individual ametuer authors just going for it are a much more nimble crowd and the amount of conversion guides we've been able to release in the last year is proof of that. It will be interesting to see how the cheap conversion guides continue to compete with high dollar, professionally published hardbacks, but more importantly I see gamers are getting more choice. You want to go cheap you can get a PDF of the original module plus a conversion guide instantly. Heck, now you are starting to be able to get POD copies of the original adventures at a modest price. Or if you are really stoked about these adventures you can get a super polished book with original art.
Combined this treasure trove of adventure content with all the original stuff being released daily by the DIY OSR community (Broodmother, MotBM, Yoon-Suin, DCO to name a few...) 5e D&D looks to become one of the most popular editions of the world's greatest role-playing game ever.