20 new stages from World 7 Area 2 have been added to Dr. Mario World bringing the total to 280. The Area Clear Reward is 1 x Staff Ticket. The Collect Clear Stars event is also running again until 26 September where clearing 60 x Stars will earn you 3 x Score Boost and 1 x Staff Ticket.
Nintendo and LINE will be updating the Dr. Mario World game after three hours maintenance on 19 September (15:00-18:00 JST, or 23:00-02:00 PT on 18-19 September) adding new stages. This is expected to be Area 2 of World 7.
The fourth new doctor being added to Dr. Mario World today (05 September) is Dr. Baby Daisy. Read about Dr. Baby Mario and the 20 new stages at this post, Dr. Baby Luigi at this post, and Dr. Baby Peach at this post.
Nintendo／LINE have announced that new characters and worlds are coming to Dr. Mario World on 05 September from 15:00-18:00 JST (04-05 September at 23:00-02:00 PT). Doctors revealed for the game that haven’t been released include Rosalina, Donkey Kong, Diddy Kong, Baby Mario, Baby Luigi, Baby Daisy, Baby Peach, and Luma. World 7 Area 1 will be the next 20 added stages and are pictured below…
Edit: the first confirmed Doctor is Dr. Baby Mario! Dr. Baby Luigi is all but confirmed in the wording.
An Eliminate the Viruses event is now live in Dr. Mario World until 05 September where you will receive in-game rewards depending upon how many viruses you eliminate in stage mode. There’s also a Diamond Sale during the same period where you can boy Diamond x 150 (100 + 50 Bonus). Rewards detailed below…
Nintendo／LINE have announced that Dr. Mario World will be undergoing maintenance on 21 August from 15:00-17:00 JST (20-21 August from 23:00-01:00 PT) to add new stages to the game. This is expected to be Area 2 of World 6 which would mean 20 new stages.