After the disaster of ORAS, I have zero trust in Gamefreak. Until they can prove that they're giving this their all with Sun/Moon, making it a challenging game with lots of content like games in Generations III, IV and V, I'll have zero expectations for the game. Considering how it's the 20th anniversary game, they can't screw this one up, otherwise they'll never hear the end of it from longtime fans like myself.
When nearly all the Gen VI Spinoffs had a higher difficulty level than the main series, that's a problem. Gen VII needs to be a return to form and needs to stop focusing so hard on mobile audiences, instead focusing on both newcomers by giving them a decent main game challenge, while giving long time fans a grueling yet achievable challenge overall like Firered/LeafGreen. To this day, those are the ONLY Pokemon games in which I haven't been able to defeat the rematched Elite Four, no matter how close I get, yet I still have fun due to the intense challenge it provides along with still being a game accessible to others who may just want to play until being the E4 the first time. Please, Gamefreak, don't screw this up. Let Pokemon Go be the mobile audience game, but make these two games actual, challenging and indepth experiences.