How about this? Don't reboot or timeskip anything. That doesn't fix the issue, all it does is delay it. I suggest that the recommendations quoted by @GWG are implemented, blame all the previous OP crap on some sort of rare magic fluctuation or something that briefly strengthened magic. Ground the floaty conspiracy bullshit into realistic proportions so that they can get fucked over, ground the tech in realism and ground the magic in lore.
Thoughts that come to mind:
Anima/Personae: Just make them pop in during their use and perform that ability and pop back out. Sort of like theurgy rather than summoning.
Void: Actually use MND for teleportation! They need to target their teleport, they can't just take a straight up magic roll!
Conspiracies: Find out how they get all their resources, influence, equipment, funding and power. In realistic terms.
Technology: Base it off of proper scientific, engineering and programming principles, if you can't, use magic that can explain the issues and acknowledge that it isn't pure technology.
Cosmic/Divine/Infernal Entities: Give them a reason to not give a damn.
The Supernatural in General: WHY THE FUCK DID THEY JUST POP UP NOW? You need a reason, as Version 1 noted that people with magic weren't even needed until the Layar war. So why did every supernatural threat just wait patiently until now to attack?
Even if you kill everyone off and timeskip to a demon/void/whothefuckcares -controlled world, if you don't fix the issues then chances are, you'll inevitably end up back in this predicament.
Actually, unless he wants to stick to his entirely new game, I'd nominate Cado. He seems fair enough, but active and concerned enough to not let everything slide.
O.O But the MAAAATTTTHHHH!!! meh, i'll do it if no one else better shows up or offers. ...please someone better show up offer....
My story telling is not the best though.
Well, assuming we take the timeskip option that currently seems the most popular, you won't be needed to actually GM anything, Projeck and I will be taking care of that. Rather, we are talking about a plot reviewer who looks things over and tries to spot problems before they become on, keeps things in line with the lore etc.
A bit stricter than Elf, but at the same time, a bit more relaxed than Elf. No reason to go all "I am sooo close to shuting the hread down forever" when there is an arguement going on, and maybe instead trying to solve the arguement
For starters, account for the Layar. They invaded Earth for resources. They were defeated. They still need the resources though. I don't think they'll take too kindly to other entities trying to take over Earth if it removes the possibility of trade.