I was planning on cashing in some of my points soon, then having the rest added right before our trip.
I was just thinking that... once you actually have the card you can add more reward dollars before your trip to the existing card you have. Only takes a few hours. Can someone confirm this is the still case??
If you're getting a rewards card for the first time I think the minimum is $20. So get your card with $20 and then add the rest whenever.
If you run out of time you can also pick up a rewards card (you need your visa with you) at any guest services in the parks and DTD. They'll give you a card and then you call to have the $$'s transferred. It's always been a pretty immediate transfer in my experience.
There is no reason to wait since you are going soon. The card you order now will expire December 2016 so no worries there. You can transfer your dollars online and it is effective instantaneously.
It's so easy to transfer rewards dollars (a quick phone call) and the transfer is instantaneous. So, I'll order the card well in advance ( 2 months) and then transfer what I need when I am there. I usually do not transfer all of it at once because I am afraid of losing the card, so I just refill and spend and refill and spend!