Greater Israel will never come into existence rather in their obsession to establish it the current Zionist state will collapse then be dismantled, inshallah. It's all part of a divine plan, Allah is setting up a trap for them that will seal their fate in the pits of hell for eternity!.
From my understanding no hadith has spoken about the coming of a Greater Israel rather the return of the caliphate after a very tough period for believers.