Scirmishes were fast, random, and a great starter training zone for the less serious PvPers. There is virtually no arena training area anymore. If 2850 rated veterans with years of experience have a hard time putting together a Wargame with their extensive collection of teammates, how can you expect the Challangers to set up a Wargame and start to learn the basics of organized arena PvP?
A great system would be if you could some how que up into a battlegroup-wide pool of players looking to setup a team of a certain composition in a non-rated setting. That way starter players would have some kind of idea of what they need to be looking for to create a solid foundation to learn the ins and outs of the ladder. Also this would help to generate more opportunities for PvPers to build teams for the rated ladder, rather then looking to outside sources to find teammates.
Or simply re-introduce skirmishes, bc Wargames are only hindering the growth of the arena community. The numbers of active teams have continuously been diminishing over the seasons. Sure the veterans continue to return but that only over saturates the ladder with talent. Some might think this is a good thing for the PvP community, but sadly its extremely unhealthy for the ladder. Without new players having avenues to hone their abilities in a non-rated setting, being thrown into a gauntlet of a concentrated pool of experienced arenajunkies is a huge turn off. Fighting gladiators in the 1700's crushes all hope of them being able to learn how to become better PvPers.
Hopefully they will come up with something in Mist of Pandarea to deal with this issue, bc the way I see it: Wargames are strangling the PvP community on the only MMORPG that has decent arena.