as of the most recent naruto chapter the only relative of naruto that they have introduced is his father no mention of a brother
Pein is the suppossed akutski leader trying to get the 9 tails.
Yes, he does die.
I heard that Konan and Pein make a great couple, but in Naruto Shippuden, Pein dies without Konan saying she liked Pein, there is no proof.
Naruto Shippuden episode 203
Yes, Pein does die.
yes
His debut appearance is Naruto Shippuden episode 114
Jiraiya dies from his old student Pein in Shippuden, shortly after sending a message to Konoha resulting in the defeat of Pein by Jiraiya's other student, Naruto.
166
yes, but naruto almost dies in the process
yes it will have all the forms of Pein aka Pain. =) and it might go to were naruto goes into sage mode
Chapter 430 to 449