HistogramRegistration migration

Are there plans to migrate nipy.algorithms.registration.histogram_registration.HistogramRegistration to a package that is more currently maintained? It’s very useful for aligning CTs to MRs and I’m not sure of any other equivalent function. Perhaps the question is better as is there a better way to do the alignment but either works and I’m happy to help with a PR.

Never mind, I think Dipy has a similar alignment albeit slower.