Neat idea, although I would probably stick with irssi[1] running on my server and connecting with mosh[2] to that for mobility with instant session resume.
I don't know if you've seen it, there is a fork of Glowing Bear that works with irssi instead of weechat. I don't know how complete it is (I work on the weechat version), but if you're interested, check out my other post and #glowing-bear on freenode!