If it doesnt find the Higgs it 'should' according to theory find some higgs like particle in that energy range that can help account for the prediction of the Higgs having such a mass.
Selections 2 and 3 I think no, because of "The moon is still there" argument. The moon (and our atmosphere) is bombarded by high energy cosmic rays many orders of magnitude more energetic than what the LHC will reach - and the moon has survived without being sucked into a blackhole.
By magnetic monopoles I suppose you mean topological defects in general. These flow from a nice theory of symmetry breaking, that we also use to get us mass via the Higgs mechanism. While I cant guess if we will find them - it would be very nice (aesthetically) to find the universe obeys these theories that we have.
Supersymmetry is one of the harder ones to guess. This is beyond the standard model.. while we know the standard model isnt the be-all and end all, [personal speculation with no backup] I dont think that supersymmetry is a step in the right direction[/personal speculation with no backup] I dont know what the lowest mass-energy sparticle is postulated to be, so its hard to say if (assuming susy is correct) the LHC is powerful enough to see any such superpartner. String theories require super symmetries to get fermions, so again it would be nice to find sparticles

.
Extra Dimensions.. well I dont think we could get conclusive evidence that extra dimensions are at play, but if they exist we may see some 'this indicates/could be explained by the presence of extra dimensions'. Its just that these are so hard to probe directly, it wouldnt be a clear cut discovery.
C-parity, the symmetry between particles and antiparticles. I thought that the weak force already violated this symmetry.. EDIT::1980 nobel prize in physics was for the discovery of CP violation in neutral kaons:
CP-violation - Wikipedia, the free encyclopedia
But I guess that doesnt mean that the LHC cant see it.. I just think that because they aren't directly looking for it, they wont find it.
Another Universe.. anybodies guess. But as with extra dimensions, it wont be something that is clear and conclusive.
Fish - perhaps only in the sandwiches of the scientists and engineers working long hours over the coming months. And a big thankyou to them for bringing us this information (when it eventually gets to us)
So I havent really said anything new or hesitated much of a guess of what will or wont be seen, but I have being reading a lot about this lately and it was nice to right some things down.
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Jay-qu
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