I need some tips on what to do.
Yes - I need to replace my chest. I'm farming heroics for the 59 Conquest Emblem chestpiece (which by the way, I am unsure what chest that token gives, link please?), and a few other things.
My spec is a survival spec, I wonder if I should change it.
No threat issues to speak of, maybe if I'm with a overzealous Mage or Hunter.
About the glyphs... I would say vigilance or devastate glyph instead of cleave.
About your spec, personally I feel that your spec is more of hybrid between survival and threat. For a survival spec, i'd take at least improved demoralizing shout (seriously reduces the dmg you take).
About threat, you may feel that more in raids if you get a "good" warlock (dps/gear-wise). Keeping vigilance in the right target will seriously help on that part