Genensis!? (little bit spoiler maybe)

i just beat Genesis, and Zack and Cloud head on.

and then i see a shinra helicopter and 2 men with different kind of 1st class suits are talking about 'theire brother' (refering to genesis they are picking up) and if he will accept his faith. after that a final quote: ''nothing shall forstal my return''

why are they picking him up, and what does all of this meen? does he have a role in FF7?

+ Cissnei tells: 'i havent even told him my real name' ... who is she then? all i can think of is Elena, but thats problably not right

i just finished the game.. again.. im so sad now

Genesis' "brothers" are characters that appear mainly in Dirge of Cerberus.

Cissnei is not Elena. Some things were not explained for the sequel that will come one day and was announced six years ago as "the Complaton's end will need another form".

Genesis himself awakes in Dirge of Cerberus again.