Hello!
Here are some of my own personal speculation/theory/random thoughts on the Silence and the wierd attempt at a tardis console room.
The Silence/Silent. I think the creatures we have seen are not the big bad. These are merely forward troops/drones/mercenaries, possibly not, in terms of species even related to the Silent/Silence. Much in the same way, that the ground troops of the Shadow Proclamation, the Judoon are not the same species as the aliens who actually seem to comprise/run the Proclamation.
To my ear, the creatures voice do not at all, resemble the voice which whispered "silence will fall" of course, I could be looking at it slightly roundabout, and the creatures are indeed the Silence/Silent, and the voice which warns, is the big bad, a different type of being, and nothing to do with silence/silent, their just his bad boys on the shop floor. "Silence will Fall" might even just be a flowery Moffaty way of a gloating baddy saying his troops are invading. Or Silence is a place or being who's fall engineered by the creatures is vital for the mastermind behind them or themselves to achieve whatever their end game plan is. Groan. so many options, ideas and madness in trying to work them out!
I think they may actually be a "what if" baddy. not a parallel reality in the multi verse, such as "Pete's World" but a timeline that *could* have existed, but did not, maybe even a temporarily created timeline caused by a paradox, the death of the main universe in The Big Bang for example. In effect the Silent are the Ghosts of what May have Been, or Never Was, attempting to either re-establish/or actually create a reality where they DO exist, or simply an invasion, the ghosts of what never was, forcing a breach and a foothold into What Is.
The weird replica Console Room, did the Doctor actually say it was a proper, fully functioning "time" vessel? I guess someone attempting to replicate a Tardis wouldnt necessarily bother with all the bling and functionality of a Tardis, the vessel does not seem to have a multidimensional capacity, it looked to be about the size it was. It had basic cloak/chameleon and emergency hologram capability, but those are not technology of the "gods" ie timelords, i would imagine any reasonably advanced civilisation could construct those. And where were the Engines and power source?
I do not think it is a time vessel, or if it is capable of that function, its not its primary one.
My Big Bold Speculation is, what we have here is effectively an ARDIS, just the "and relative dimensions in space". A vessel constructed to either carve a hole through the multi verses, and void spaces, to allow travel between realities, in a universe where that has become near impossible, OR in line with my speculation of the Silent as the Ghosts of Never Were, a Vessel constructed to travel from Never Was, to IS, ie the existing timeline
Apologies for the long rambling post
and even more apologies for my bizarre Never Was/Is ideas, which actually remind me a little bit of Lawrence Miles' Faction Paradox from the Eight Doctor Adventures, and his Faction spin off line, with the shadow parliaments of the 32nd of October, and joining faction necessitating one going back in time and killing oneself, thus creating a chaotic paradox.
