Samsung is killing their own. S4 wasn't a huge success because they release mega, core, note 3, grand, and win. Now they are releasing news for s5. Holidays are coming, why should they be talking about this? It would just hamper the sales of s4 even more.
Qualcomm SoC will turn to be the primary one again, bet on that.
Also 4000mAh battery won't make it, not even close, due to the limitation mAh/gram ratio, which is far off to fit in any viable body atm that Samsung uses.
I predict another big flop after S4.There is just nothing rly new they can offer, maybe just a new design and better materials, eventually.