The Ipython team has released a couple of major releases during the last months but I haven't seen any discussions about packaging them in debian. Just for curiosity, I decided to start trying to update the debian package (v0.13.2) to the latest release (v.1.1.0). When doing it, I realized there is a lot of changes to do and I do understand why it is not in sid yet (putting aside you might be also very busy with other things).
I didn't plan to propose this work for a NMU but I'm wondering if someone was working on it. So far, my work is still in progress but I don't mind keeping working on it if it helps you or dropping it if a debian package is going to be uploaded soon. I have adapted most of the debian patches to the upstream release. I'm still working on the Mathjax patch to avoid ugly hack. I started from the source that one can get at: https://github.com/ipython/ipython/archive/rel-1.1.0.tar.gz . However, everything isn't shipped in this archive and I had to add "static components" that I took from: https://github.com/ipython/ipython/releases/download/rel-1.1.0/ipython-1.1.0.tar.gz . I put these files altogether in the same .orig.tar.gz archive and started packaging from it.
If you need help on this packaging, I'll be very happy to contribute.