I found that I can still generate a link to sign up for the traveler card at the old 60K offer through a refer-a-friend link. If this card is being discontinued, I would definitely grab the offer now before it's gone, but if it's down only temporarily just to be revamped, the 60K offer is very weak compared with last summer's 100K offer and it would be worth waiting for a better offer.
I spoke with two reps at chase, one from the IHG department. Both were surprised when they checked and didn't find it available for signup (though it's been down all week). The IHG rep says that there certainly hasn't been any official announcement or he would've heard about it, the only ones with the answers are "the people running the company", and his assumptions are as good as mine.