These rumors range from a detachable handheld component, to possible ports of other triple A games, to Nintendo 3DS games being available to play on the console, but we won't know anything for sure until the Nintendo NX reveal comes and gives us actual details on the console. (segmentnext.com)
According to the developer, they have been investigating the PS Vita port for several months now, both on their own and by approaching possible porting partners. (handheldplayers.com)
Yesterday, Jools Watsham announced that he was gauging interest for a possible port of Chicken Wiggle for the Nintendo Switch called Chicken Wiggle: Re-Hatched. (perfectly-nintendo.com)