The folks at HoYoverse have run a 30-minute special detailing everything they've got coming for Genshin Impact 2.8 when it launches on July 13, 2022. The Summer Fantasia update, trailer above and on YouTube, will include previously-leaked character Shikanoin Heizou, a prodigy detective whose “senses are sharp and his thoughts are clear.”
It shows some previews of the jungle of Sumeru, a new region of rainforest and highlands on Teyvat. There's some giant flowers, grassy highlands with trees, and some impressive-looking glass structures to explore. There's also a hint at what may well be a bit of desert or badlands.
You can watch the full Version 2.8 special program on YouTube.