The CERN accident is more serious than they admit

I read that CERN is going to try to do repairs over the winter and around March/April, start up the series of injectors leading to the LHC, and start the LHC around May, resuming where they left off, with about 2 months of additional testing before doing collisions. That means energetic proton collisions next summer.

But I doubt it.
 
The problem is much more serious, I believe.
 
They still haven’t started the warm-up of Sector 3-4 for repairs.  And they’re having difficulty maintaining the temperature of some of the magnets [both ends of the sector are slowly warming, and this is not part of an intentional warming, rather they are trying to maintain their cool [pun intended!], as the bulk of the non-quenched magnets remain cool and are not being warmed [though slightly above 1.9 K] now 5+ days post-accident.
 
Here’s the problem they are probably struggling with.  Why did so many magnets quench, and are they OK?
 
The idea is that if one or two magnets quench, it’s a problem, but not a major difficulty.  If the quench were to cause a magnet failure, they could replace the magnet with some of the spares they have, though that would be time-consuming as it would require warm-up and then cool-down.  Here, however, they had 100 magnets consecutively quench.  Unheard of for superconducting magnet colliders [such as RHIC and Tevatron].  And, they don’t have 100 spares just lying around if the magnets went bad.  They would have to be fabricated anew.
 
Here are some more concerns.  Did this happen in the first sector they tested in going from 0.45 TeV to 5 TeV [testing the field strengths of the magnets]?  If so, what will happen in the next 7 sectors to be tested?  I believe it was the first sector tested, as this was a new type of test, and they had just brought it back to cooldown, and they were wanting to prepare for beam acceleration to 5 TeV, testing the magnets first to make certain they worked.  I don’t believe it was 7 sectors passed the test, and then the 8th sector failed.  I believe it was the first sector that was tested that failed.  But, CERN is being tight-lipped about it, so I can’t say for certain.  It’s just that it was early in the day, shortly after they started testing that the accident happened, which implies to me that it was one of the first sectors tested, not the last.
 
Did this happen at the current/field-strength required to curve beam at 5 TeV? Or at lower field strength [say, 3 TeV] as they were ramping up to 5 TeV from 0.45 TeV?  If it happened at the lower field strength, what will happen elsewhere in the sector’s magnets when they move upwards to 5 TeV?  More couplings fail?  That would mean that they have to re-design all of the magnet-couplings for the entire ring - warming all 27 kilometers to 300 K, retrofit all the couplings, and then chill back down.  That won’t happen over the winter.
 
And, what caused the consecutive quenching of so many magnets just because an electrical coupling of two magnets lost superconductivity and melted?  That would cause those two magnets to quench, but why 100?  Will this happen every time they have a minor quench, have 100 more also quench?  Bad news if so.  Quenches are rather routine events when they occur one at a time, at Tevatron or RHIC.
 
And, why did the quench take out the temperature gauges?  They are presently not reporting for that entire stretch of magnets [1.5 kilometers, or 100 magnets].  That implies physical damage.  That would be an extensive repair/redesign that should be put in place on all 27 kilometers of magnets.  Won’t happen this winter…
 
Add, since 100 magnets quenched, how likely is it that all 100 escaped any damage?  The quenching is initiated when it is detected that a small portion of the magnet loses superconductivity.  To avoid resistive heating in that small section only [depositing all the stored energy in that small region], heaters kick in that causes the entire magnet to lose superconductivity.  Then, all of the stored energy is deposited throughout the entire magnet, not just a small region.  This rapidly heats the magnet from about 2K to about 100K [the same energy deposition as taking water from 2C to 100C in a fraction of a second], but relatively evenly, so no one region excessively heats and is damaged.  So the theory goes.
 
In practice, how reliable is the kick-in of the heaters?  If there is any delay anywhere, the heating will be uneven.  I would wager that out of 100 magnets, it is likely that there was some difficulty with some of them, causing damage to the magnets, meaning they will have to be replaced.  Won’t happen this winter…
 
So, with these serious design problem issues still not addressed in the public, I cannot say for certain that they won’t be back to operation next summer, but somehow I believe it looks closer to 2-3 years if they have to re-engineer the magnets, or 1-2 years if they have to re-engineer the temperature gauges. 

This might be a very long wait for them.