Just a thing that came into my mind now... Wouldn't it be nice if Death Gate would not just port you to Acherus, but also create a gate at the place you spawn in Acherus, which then could be used to come back to wherever we came from? Of course, it wouldn't be infinite, but I'd say one minute duration would be just fine.
Every class except DKs can just respec in a major city and immediately go to an auction house/bank/trade channel, but DKs can't. Also, what's the point in calling it a "gate" if it's basically a one-way portal?
It's not a huge issue for Horde DKs since there are both Silvermoon and Undercity ~3 minutes of flight from Acherus, but Alliance players have a lot bigger distance to travel to their nearest capital.
What do you guys think?
P.S. This is an IDEA. "Duuude, this stuff will never get implemented" posts are really unnecessary.