Calling people trolls just because they disagree with your idea just makes you as bad as the ones you are calling trolls.

In any case just some things to think about:

1. On your dedicated arena idea:
- Where would they be placed? A NPC to pull you in as you said, seems a bit silly really. Where are the actual arenas?
- Will this affect the current PvP queues for Wolve's Den and Frontlines?
- Will there be any PvP experience, Myth/Sol, and/or Wolf Marks rewarded? If not, what you do you think the likelihood of people doing it? Less than the current PvP content?
- How much time and effort would it take to implement something like this versus the popularity/or lack of popularity of the current PvP systems?
- Would you have the same restrictions as Frontlines (DEF/MDEF stat boosts don't work), or like Wolves Den where the morale stat works?
- How many people can watch the match?
- Can they interact/chat with the players?
- What happens if you queue up and then leave/withdraw?
- How do you handle harassment? (ie player 1 challenges player 2, player 1 loses, but won't leave player 2 alone because they are done with PvP'ing) If you are thinking blacklisting or filing a report. How much more time will the GM staff have to spend on these reports?
- Will this be cross server accessible?
- How much time would it take to implement?
- How many instances would have to be created?
- Is there a queue?
- How much would it cost to maintain (for hardware/servers)?
- How much baby sitting on the network and admin side of things would have to be accounted for?
- Will this take time from other projects/content being built for the game?

2. Deathmatch: Already exists in Wolves Den (although a change in scenery would be nice).

3. King of the hill: So, deathmatch pretty much but it turns into a All vs 1. Or at least that's how every king of the hill game I've seen go. Basically, it's a free for all, no one works together. Everyone vs everyone.

4. Objective collection: Already exists in Frontlines...called flags and well if you've done any sort of Frontlines you know how often that works trying to coordinate a party let alone an alliance.

5. PvP FATES: What you described sounds exactly like normal FATES with the exception that people could try and kill each other off. So, instead of working at getting the FATE down you just eliminate others and then finish the FATE?

6. Arena hazards, like traps? People love traps when they are trying to take down other people. Or you know totally ignore them.

As for your final question do I agree that your idea is an agreeable compromise?

No, I don't think it's an agreeable compromise. And I'm a PvPer (Rank 40, have horse, have 4 complete sets, working on 5th).

Personally, I'd like to see their time spent fixing the current PvP issues than adding more of a mess.