If you don't mind I would like to expand on this a little more. I would love a warzone system that could take a few things from how LoL set their matches up;
1. Have 10 - 49 in their lowby bracket, that's that, it'll never be competetive as twinking is VERY limited with how much XP you get while while PVPing and the lack of consistency of the level of your team/opponents with such a large bracket, you'll have an advantage at 49 with slottable gear modded out, it's not the same as the current geared 50's with 500+ expertise, overall a more enjoyable experience for all those who take part.
2. Have a Solo/Duo warzone queue, self explanatory, you queue alone or with 1 friend and play warzones, that way you aren't in a team with 7 other solo players against a team of two pre-made groups of 4 who have supreme communication and pocket heals/tanks to guard etc that can melt your faces, PVP is meant to be fun, having your face melted 99% of the time isn't.
3. Have a 3+ (maximum of 8) grouping bracket, games would be more competetive and cut-throat due to the increase in overall communication and the general play-to-win mindset of people setting matches up this way (I delve into those wanting to do this style of PVP in a less competetive environment further down in my wall of text) (Vent/TS etc.)
Have option 2 and 3 be able to queue for ranked/unranked for more/less competitive warzone experiences respectively. I understand some of this is coming into play once the patch hits on Tuesday but this is just my idea on an expanded system that can give anyone, no matter where they range on the spectrum from casual to hardcore, soloer to raider, guildless or in a big guild a much more enjoyable experience over all.
Having said all that I do still have fun with the current system, just a few thoughts, let me know what you think!
Please don't include an enormous booty-inflation device in these robes either.