If legendary tokens expire, then it is obviously not wise to stock-pile them until three 5*'s are available. If they don’t, then stockpiling them until there are 3 5*'s out there seems like a no-brainer.
No tokens expire.
I believe that the 5-star chance in legendary tokens is going to go up to 10% once the second character is released but it won’t go further - the 10% will just be divided more ways after that.
Ok. Thanks for both informative posts. Appreciate it.
I can confirm that while tokens do not expire, if you pull a Silver Surfer you have the same two weeks to roster him or lose him as you do every other character. Mine was rostered in less than one minute. 
That’s quite an assumption. Is there a post that implies the 10%? I haven’t heard anything like that.
IceIX has confirmed this, after the 2nd 5* release, it will be 10%, and remain at 10% even after the 3rd release.
Cool thanks. I really wish this forum had a feature that highlighted dev comments - Aka like Marvel Heroes
It’s incredibly difficult to keep up with a comment when it gets immediately buried.
Thanks again.
It did fall off, but here is the link to the Line Q&A