I hope they make it into the Fall Impulse assortment as Target usually stocks up on those for Halloween goodie baskets here in the US of A. I don't think they are in time for an Easter release, but then they COULD be a Winter/X-Mas assortment, like wave 2 of Castle Impulse. Remember that so far we have seen the dark green Wizard and the Jester Impulse sets, and these two would certainly follow after them if they make it to retail.
Otherwise I am all for another hardcover idea book assortment like the Pirates and Castle books of 2009, and these two could be included together in a single Kingdoms book. In any case, I just hope they make it to retail en masse here in the US and the rest of the world according to LEGO (and beyond). Too cool for words.
Time and perhaps Ambassadors will tell.
There is no life I know to compare with pure imagination. Living there, you'll be free if you truly wish to be. -Willy Wonka, 1971-