there is no one and nobody is gonna come in ages also..
the concept of khilafat cant work now, we tried it and it failed (i am talking about khilfat usmania), and there is not a single muslim country which can sustain the burden of khilafa, also muslims r divided even more now.. i dont see any chances of any great leader..
Akhi,
It doesn't takes a day to establish a Khilafah Islamiyah nor does it takes a day to bring up a generation who will fight sincerely for Islam. Imam al-Ghazali wasn't able to see the effect of his book; Ihya Ulum ad-Deen to the Muslims at the time of his life. Only when he has passed away, we can see how his books are widely used, search and learned by many up until this day.
We still have hopes and our weapon; dua'a. Of course, we need to make an effort and struggle first and foremost to our best and greatest abilities to put Islam at the highest level, the place where it belongs. As well do we believe that one day, Islam will arise right before Yaum al-Akhirah.
In an Islamic magazine I read, the ulama at the time of the great leaders had a very big role in the country's administration. The ulama won't hesitate to correct the mistakes of the khalifah.
Khalifah Harun ar-Rasyid wanted to learn and seek knowledge from an ulama (the magazine didnt mentioned his name). He invited the ulama to his palace. However the ulama said, "If you want to seek knowledge from me, it is you who have to come to my place." And so, Khalifah Harun ar-Rasyid, who manage to conquer 2/3 of the world during his leadership humbled himself to seek knowledge from an ulama at his time. MashaAllaah. It is such man, such honourable and true Muslim man that we need, who will, bi ithnillah, be the leader of the Muslim ummah.
History of Khilafah Uthmaniyyah, Umaiyyah and Abbasiyah showed us that the reason they fell apart were due to the weak leaderships. They became great when their leader submit sincerely to Allaah, when their heart weren't attached to the worldly matters. But when their hearts become attached to the world, corruption happened widely around the country and their defence for the country became weak, that's when they came to the end of the Khilafah.
I pray that may we be among those who will still be alive, to see the rise of Islam, as history has shown that we were once the greatest nation in this world. Keep working and keep praying. May our dua'a be heard and maqbool by Allaah subhanahu wa Ta'ala. Aminn Ya Rabb al-Alameen.
Waalaykummusalam wa rahmatullah.