Bismillahirrahmanirrahim
Dear Brothers and Sisters
Very suprised no one mentioned his son Sheikh Muhammad Adil Haqqani who lives in istanbul.
As one brother put it Mawlana has numerous representatives , deputies etc. (May Allah bless them all) some are more senior than others
But none is as yet his sole Khalifah which will represent the Silsilaa, that is because he will be transferring his Duties and SIRRI AZAM to Sayyidina Mahdi (as). And in his time evryone will be a SAINT so no need to fight or be upset
Everyone has a certain task in Mawlanas circle seen and unseen.
His ultimate guide for us is "look at your hearts.If you are happy and content be with those people and rep. or deputy. If not , you dont have to."
I would advise all brothers and sisters to focus their hearts on Mawlana only. Otherwise they are a weak link !

Do not occupy yourselves with anyone else. Mawlana is ALIVE and he is more than Enough for all of us.
It is bad manners and bad ADAB to discuss who is going to replace him.
Personally I cannot see anyone replacing Mawlana! Absolutely not. MAY ALLAH GIVE HIM LONG AND BLESSED LIFE, at least till we join with Sayyidina Mahdi and Sayyidina ISA as (he promised to meet them InsaAllah)
I have just come back from visiting him. MasaAllah he is in ABSOLUTE good health and spirits. He is only giving good news.
One thing he said was " Autumn and winter for Islam is over now, It is time for Spring now. And no one can stop it. Shaitan will be defeated and Kingdom of Heavens will be established.Sayyidina Mahdi as is in command of the events".
Keep praying and watch!
May Allah bless you all and forgive me.
Wassalam.