Board Thread:TV Show Discussion/@comment-4708902-20161117030506/@comment-4708902-20161122123354

But even that could be risky. He'd have to convince Daenarys that he has no interest in the Iron Throne. If that goes well, then I could see a two pronged siege. Daenarys attacks from the sea, drawing the majority of KL's defenders to the eastern battlements, leaving the front gate and western battlements reltively unguarded. Someone(Canidates could be Tyrion, Arya or Gendry) should sneak into KL and open the main gate allowing Jon and the Northerners to enter.

Unbenowist to the attackers, Daenarys has given Qyburn a very specific order. Should the attackers gain a foothold in KL, he will ignite all the remaining wildfire barrels and destroy KL. So someone needs to find out about the plan and race to stop Qyburn.