> Could you point me to where the decision to deprecate has been made?

search for :

+    if normalize is not None:
+        warnings.warn("normalize param will be removed in 0.15."
+                      " Intercept fitting and feature normalization will be"
+                      " done in estimators.",
+                      DeprecationWarning, stacklevel=2)

> Can
> we also deprecate normalize in orthogonal matching pursuit? The code is on
> the point of unmaintainability because of branching in case of normalization
> and copy_X, copy_Gram, copy_Xy interaction.

Yes I think it's the most reasonable option. Indeed all these options make
it a nightmare to maintain.