I also see Barry ending on earth 2. He meets Jay Garrick who will serve as a new mentor for him and will help him returning on the main earth. But, when returned, Barry is shocked, because everything is now different. Eddie's suicide has reset the reality, and he is now in a world that he doesn't recognize. Wells and his wife are alive and are still working on the particule accelerator. Both his parents are alive and well. Eddie is alive but is not a cop anymore but simply a very embittered janitor in the police station (so he will become slowly Cobalt Blue. By having created a better life for him, Eobard created a hero instead of a villain). And there is no Flash and no powered supervilains in Central City. Like Wells said, for everyone except Barry and his family, the world he created build them a better life. And I'm curious to see where Cisco and Caitlin will end up in this new world, but Cisco will be the only one with Barry to remember what happened, and will probably be the one who will believe him at last and help him adjusting his life in this new world.