Days of Deception doesn't appear to be a crossover, but a banner/theme across the titles, like Dawn of the Autobots. There's been nothing to say the books are crossing over at all, just like the Dawn of the Autobots branded books didn't (despite my comic shop insisting Dawn was a crossover and I had to buy all the books!).

The next actual crossover is the RID/Windblade Combiner Wars crossover.