Guess it depends on your patience level (obviously you have patience, for working on Tol'Vir fragments at all!) I personally don't like holding onto things; I go for a fast turnaround because I just don't have the bag space to keep inventory and I don't like potential gold to be hanging out in my pockets, doing nothing (gotta sell so I can keep buying so I can keep selling). So I would go with #2.
If you're anticipating that there's pets you would want in the next xpac (and would value at a higher cost than what the Claw is worth right now) then you might consider #1. It's too early to say what the next Viscous Horror or Seaborne Spore might be, or when it'll come along, but if you're thinking you don't want to get caught with nothing to offer at that time, then holding onto it might be a good idea. I doubt the Claw will be any easier to get in the next xpac.
I'd say #3 is out because you'd go insane by the time you got a 3rd Claw via an alt.