It seems pretty clear to me that the ID folks will not prevail in this case. The attempts to separate ID from creationism are doomed to failure, and that will be an end to this debate.
If a "higher being" did the design work, then those making that argument are going to be asked to identify what sort of being that might have been. They'll hem and haw and finally have to admit that it's a deity. Which deity? Well, any would do, since every religion has a creation myth of some kind. Are all deities equal? Did they form a committee to design the universe?
Are they all the same deity with different names, then?
Then the big question comes: How would science investigate a deity? Well, that would be impossible, of course, since a deity is obviously supernatural and out of the realm of scientific investigation.
So, no evidence for this "higher being" exists? Nope. Case over.