I still want Mega Evolutions but for only one reason. We still don't have all of the major Pokegods of yore.
We have representations for Sapusaur, Rainer, Charcolt, Spooky, Beepin, and Dimonix. If they make a Mega for Butterfree (Locustod), Raticate (Raticlaw), Nidoking (Nidogod), and Nidoqueen...