Thread:Gokyr586/@comment-24440576-20150610103017/@comment-11479355-20150610110800

Also, this source (http://www.orendsrange.com/2015/06/kamen-rider-drive-surprise-future.html) says that Eiji was chased by Dark Drive himself from the future and has arrived in the present to "warn Team Drive about a cataclysmic event triggered by the Drive Driver."