Question on Taco Vault Token Noob here. I got my first taco vault token yesterday. The Taco Vault itself has a countdown on it with 4 hours to go. People have been talking about this Taco Vault for a while though do I can't imagine it's going to go away permanently today. Do I lose the Taco token if I don't spend it before that 4 hour countdown ends?

I'm only wary to spend it because I have 8 heroes earned which I am still short on points to roster, so I don't want to put any more new ones on the docket if I can avoid it.