Hmmm, it's nice to see things like Deepspawn, Brown Dragon, Purple Dragon, Fang Dragon, plants and some others return, but all these humanoid races getting new pages is really bad in my opinion, also very bland monsters like 3 headed dragons and boring drakes...
The Philippine monsters, why? WHY? Tikbalang, Tiyanak, Anggitay, Manananggal, Batibat, Sigbin, Kubot, there are so many awesome monsters in those myths, it seems that D&D found the most boring ones (spare for the cyclops and Nuno) and gave them a shot... Never cared for Engkantos for example.
Also no Destrachan? Darktentacles? Metal Masters? Grey Jesters? Ghaunadan? Astral Stalkers? Deadly Dancers? Crimson Death? What do they have against those creatures? They are far more original than things like Shedu and Lammasu... Especially when we already get like 20 types of boring sphinxes, just sphinxes with different animal heads, any child can make that stuff up...
There are also a lot of awesome mythology creatures that could be used, like giant Skunk monsters called Aniwye or horrible disease spreading Nuckelavee... But if D&D uses a myth creature it is mostly greek or some boring holy creature from Asia (Lammasu ect)
It's like the D&D Monster Manual creators don't have enough imagination, I mean Kobold Press and Pathfinder monster manuals are TEEMING with original monsters that look nothing like the next, of course there are variants too, but they are nicely mixed together, in D&D there are more copies of other monsters than anything else, and if they finally create a cool monster (Destrachan) they seem to forget about it in the next edition.
Really hope the previews in this topic are just a few of what still to come, as I really want my Destrachan to return.