Green Dragons should remain, and so should OSRS Fire Cape Zombies (or Chaos Ele) as well as the other training locations should stay the same. Although the Corporeal Beast is interesting I believe it would be interesting to have barrage runners go into the cave. However, the boss mechanic of the Corporeal beast in RS is unique. Because of its high-risk nature you will have to be able to bank several times. If the entrance were moved nearer the border of the wildy it might prove more attractive since it's currently past level 20, the tele cut off point.
Summoning also presents a challenge, I would far prefer to have a unique set of game rules, so while lending would be easily solved by not allowing lent weapons in the wild the summoning level of combat will need to change. It would be convenient to be able to drop all at once, as with other items in RS. The restriction on pouches is unnatural in pvp universes. There is no way to solve this issue. The best solution is to leave it as "pouchin create, fight is over"
The last and most important point is that you cannot have PVP wilderness realms. Never. There was one thing missing from PVP/BH worlds: the excitement of the wild. It was the best experience I've seen in any game.
Pvp meeting pve players. While it wasn't required, non-pvpers could to to participate in pvp games for rewards. My above point for the quests is that everyone has access to this type of content, however making certain realms "safe" is a blunder completely. It's the most important aspect. If there's a secure place to stay away from attacks, then that's a complete defeat of the purpose.
No Buy OSRS Accounts with use the abyss of danger as there is a perfectly safe one to use one hop away. Zombie-hunters in armour can move to a safer world after leaving the wild. Actually, this would work for any world. This is a request. Do not promote the idea that "safe" worlds can be located in the wilderness. It defeats the purpose and detracts from the pleasure of being in the wilderness.