There is no Murkrow split evo, people misinterpreted his answer to a question about Murkrow
There's a new form of camping, it might be called picnics. You can feed your Pokemon sandwiches, wash them to restore health, and it is the new way of obtaining eggs.
He posted a couple blurry pics of half the map, but almost immediately deleted. He asked them to not be reposted, but they still have been anyway. One pic was the in-game map (largely what we already saw in the trailer), and two looked more like the artwork they usually release.
Says that if you include the explorable ocean and island, the region is probably bigger than all areas of Arceus combined
Being able to change your moveset from the menu is returning from Arceus
He posted emojis of a fish, bird, frog, and chili pepper, implying new Pokemon
Coin Pokemon evolves into gold ningen?
(plot related kinda) Says there's a late-game area where you can catch as many of each ancient/future Pokemon as you want.
Says future forms are Violet exclusive. Says the ancient/future forms are called Paradox Pokemon (though maybe he was just saying the cover legendaries are called that? again, could be different in English)
Also Khu has announced he's quitting, lol. Sounds like Twitter yelled at him for repeatedly harassing people. He was clearly upset the new leaker came along and stole his thunder by giving actual direct answers and stuff, haha.