Are the gilded tokens going to be obsolete when the crate disappears? Or will they carry to a future gilded crate?
Gilded crate is here to stay, tokens are going to be permanent. You don’t have to spend all your tokens now if you don’t have any. Commando will remain in the gilded crate for the foreseeable future but there will be chances to get gilded tokens again eventually 
When the Crate expires, a new one begins, potentially with reward updates. This cycle continues. The search function on the forum is your friend!
Thanks for the replies!
Just spent 22 gilded tokens & no Purifier. What a waste.
You just posted the exact same thing on another post. You’ll be alright, took me awhile to get him