I don't think so. You have to understand the way the Vim stuff works. The vim "repl" is just a normal buffer. When you hit enter a command is invoked. Stuff is sent over, answer comes back. Connection is closed. There is no way to have a permanent server connection. (The only possibility is to use Python, Ruby or Perl. And this sucks for various reasons.) So no interactive commands are possible.
The debug-repl is quite interesting and on my radar. But it won't work out of the box with the *vim* repl. So I probably have to patch things pretty heavily to make it work. However, what you can do as a workaround is: start a separate repl in a console (using for example rlwrap or jline for more conveniece). There you can start the server process: (require 'vimclojure.nails) (vimclojure.nails/start-server-thread). The you work in the repl including the debug-repl and still get the goodies for vim like omni-completion or doc lookup.
I'll have a look at debug-repl meanwhile.
Sincerely
Meikel