[S7E5] Will ____ kill ___?

So some people speculated during the prevous weeks that Theon is the perfect avatar of the drowned god. It has been well established that Daenerys' conquest of westeros mirrors the one by Aegon the conquerer. In the latest episode one archmaester mentions a prophecy where the drowned god will come forth and kill Aegon.

So, will Theon kill Daenerys?