I'm a casual player. Been playing about 2yrs. and I do go on binges. Was a commited solo player for a year, then joined a guild and had a lot of fun in groups. That guild imploded as well. The grind for gear is mind numbing, not to mention repeating every quest a bizzillion times to a point you can do them with your eyes closed. Now with item augments and new gear, those grind times have become somewhat wasted. Sure there is new high level content, but when you cant find gruops, the grind for gear to make soloing digestable is absurd. All of that takes the fun out of DDO to a degree.
Eveningstar is a relatively large area. No doubt the Devs could provide an even larger area with instances similar to instance 1-2-3 in the marketplace. Why not create a large wilderness area based on "The Savage Frontier" or something WITH instaces, walk up quests and wandering enemies of various level,(eg. depending on a specific location within this wilderness area). This "Savage Frontier" would be a free for all, with NO "HEADS UP"/NO "ACCEPT DUAL" PVP, the exception being you can only attack those within 2 levels of yourself.(eg. 10th level toon could freely attack a toon between 8-12 level) and the only "bad thing" that would happen if you die is you release and have to repair your gear...big deal. I guess anything outside of money NOT locked down in your inventory could fall and be looted by the victor...be very carefull with your inventory.
This could be expanded to incorporate "guild wars".(guild kills provide trophies...guildpoints...a level 20 one hit kills a level 2 no trophy...a level 18 snuffs an 19th level guild enemy may get an impressive trophy) Guild "X'" chooses Guild "Y" as a guild enemy where ANY member of waring guilds could freely attack the members of the enemy guild regardles of level. You got a beef with some guy in another guild here's your chance to harass him/her :-),but it may backfire. Groupings/party's consisting of diferent members of guilds would essentially become mercenary companies, with the mean/average level of the party becoming "the group level" when determining what other groups/party's you can freely attack.(mean level 10 party may attack any other party in the 8-12 level range) Trophys could be awarded in a lot of cases.
The possibilities are endless.
Of couse shrine guarding would be inevitable, but it wouldn't really matter considering you can just recall anyways. How about "The Battle for the Miribar Shrine"?