That would certainly be challenging. We'd need a lot of anti-toxin lixes though and it would need a very strong team.
I would like a map that did give something worth running for and the difficulty would need to be hard. I like the idea of a long map.
Maybe not have garbage drops on the way, I hate cleaning my inventory. I did enjoy running Mausoleum when it first came about. It was hard running that place at level 61 but we all had a good time then and the sense of achievement was worth it.
I'm not a fan of the Zodias portal bosses so yes, a long map does sound appealing.