Some suggestions...

[Peekaboo]

Some suggestions for the TBC realm.

1.) Get rid of the "Remove Cooldown" tool in the Player Tools section please.
I guess there isn't even a valid reason to have this, as profession cooldowns are useless anyway. It just gets used to spam the Engineering Teleporter from what I've seen. Who wants to see Engineers with Malfunction Debuffs, making them extremely huge, black or golden? I guess the same people who beg GMs for having their scale modifier changed or getting morphed all day.
Long story short, it's annoying! =P
Please remove it.

2.) Please also get rid of reseting cooldowns and restoring both Health and Mana when initiating a duel.
It obviously is subject to getting abused, and it gives cooldown reliant classes too many reasons to never learn their class properly, as they just fire off everything they have in every single duel.
If that isn't enough of a reason, it can be exploited to reset cooldowns/health/mana with a minor macro (think of many instant pyros...).
Duels can be fun, but no one on that planet can be that lazy to not wait for like 30 seconds between them to reg back to full. And if you think you always need your precious cooldowns, just go afk for a few minutes, it at least makes people with some experience mock you for it. =P

3.) Remove Hyjal.
Faction imbalance doesn't really help at all, when 15 Horde players camp 3 Alliance players most of the time.
On top of that the zone is bugged anyway, even though it looks nice, it's just not the best experience for having open PvP. There are Battlegrounds already to pit two teams against each other. How to balance this you know anyway, so I'm not really pointing that issue out again.
But basically, Battlegrounds fill that Hyjal role anyway in my eyes.

4.) Add a small dropchance to every outland mob for Fragments of Justice.
Open PvP is awesomesauce, make people farm them, it's worth it, even if they don't want to PvP, that's what Open PvP is all about.

5.) Drop the banhammer, this server is full of douches.
People hack, exploit, and abuse without expecting any consequences. I'm not blaming the lack of GMs here, they are present, which is a good thing, but it seems people really don't give a crap about consequences here, this should be looked at.
Start with suspending accounts for 24 hours, if caught again being a moron said ban gets increased to 7ds... and if for whatever reason that guy still thinks he's funny, he can spam his shit into his login screen, as he can read his 9000 year suspension there. =P
Be it spamming, insulting (in public), hacking, exploiting, and so on. Telling people to shut it is not enough.

Well, I hope there is something useful in there.

[Endania]

Make outland mobs drop fragments? Flying mounts + outdoor pvp = not gonna happen. Flying mounts are a huge part of what DESTROYED world pvp.

[Peekaboo]

Well druids had the edge there as their flight form is instant iirc, but I remember open PvP in outlands, but yeah the flying mount nerfed it quite a lot.
But honestly... it can't be worse than Hyjal =P
It's the closest thing to open PvP the server currently has.