The biggest shift I'd like in MUDs is dropping telnet. That is a showstopper for most mudlibs/engines/projects/whatever.
The same way we ought to have BBS/door paradigms over SSH, we ought to revive text exploration with modern technologies. ^_^
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko