Usually when before an expansion, where new spells and talents are expected, they come up with an array of spells as either spells available to bosses or spells that are weapon procs. So I have been keeping my eye out on some of the spells that the bosses in ICC are utilizing; Shadow Lance (used by one of the princes) seems to be the ticket. I wouldn't be surprised if they do go through with the whole "Nuke without a CD" that'd be where to look.
(On another note I have a sneaking suspicion that the Valn'yr proc will be a new 10minute cd disc spell. Ie: Everyones gets a bubble type thing when shit hits the fan. Thats just my suspicions though.)