1) Ash Ketchum is found by a power ring and is recruited into the lantern corps of your choice. This takes place right before the Blackest Night event.
2) Ash and Sawyer are forced to share a room the night before the Kalos League. After a battle of whose ego is larger ensues, they try to prevent the other from entering the league. They do everything from sabotaging alarm clocks to destroying each other's clothes. Hilarity ensues.
3) Ash absorbs a ton of Mega Evolution energy, goes nuts from power, and becomes a supervillain bent on taking more Mega Evolution energy in order to time travel to the start of the universe and reboot it in his image.
4) May goes to the universe where Pokemon Adventures takes place and meets Sapphire Birch. The two of them will have to put up with each other as they try to avoid a race of universe travelers who seek out talented girls to become the bride of their dark master. Multiverse hopping ensues.
5) The Distortion World has been destroyed and the multi