I see a lot of complaints that hardcore league is "draining" the regular servers.
This is an indication that people enjoy playing hardcore.
I've been active on and off since beta and I'll be honest, the past few years I only play during HC because it's just more fun.
Give us a full time hardcore server, you can do leagues within this if you want to.
I would love the thrill of dying on a 15th life character with tomes.
The other servers need merged, you have to figure out a way to do it because most servers are below the critical mass of player base to keep them healthy and have been for some time.