I often see people complaining about the leve system and lack of open world content. The leve system has so much potential, but after lvl 50 the leve system is practically useless, so why aren't there more options for end game leves?

For example, I believe it would be great if you could group up with a party and do leves directed more towards end game content.
- Group up with friends (4,8,16,24)
- Travel to area together where the leve is commenced
- Spend a certain amount of allowances to participate in the leve.
- Depending on how well you execute your chances of getting powerful/rare items are increased

Some of these could include very difficult boss battles with chances at obtaining very rare items, or even leves that consists of several parts and eventually lead to a powerful confrontation.

I feel something like this would greatly enhance the leve system, and also solve a lot the problems with a lack of open world content that's actually worth doing.