Prime Wars Trilogy? It consists of Combiner Wars (part 1), Titans Return (part 2), and Power of the Primes (part 3).
CW deluxes came in six waves, and for TR; we've seen Wave 5 and one figure in Wave 6 (Slugslinger), so we're pretty close to the end of TR. We should see the last of the TR figures at SDCC in July.