Pokémon Legends Z-A Leak

I was at a briefing for TPCI marketing
I was shown concepts and about 30 minutes of gameplay of new Pokémon game
so I know almost nothing about the plot, only gameplay and some dialogues were shown
there are many trainers in lumiose city
two NPCs: woman professor has red firey eyes and hair and a young man dressed in white with a very large scarf (may be married?)
combat seems faster than previous games
pokeballs look slightly different, one looks like the city from above
mega lapras, mega charizard z, mega flygon, mega zoroark, mega chimecho, mega florges
you can ride Pokémon to go on walls, on rooftops, in the sewers and to fly