Redirects should be marked as such in the EntityView. Broken redirects must also be considered.
We may also want a "resolve redirect" button, though the implementation of that button would have to be quite different for the main snak, qualifiers, and references.
The UI should be consistent about whether we load labels from the redirect target, or not (currently, the label vanishes when leaving edit mode).
We also need to decide whether the entity selector should allow redirects to be entered, and if yes, how they could be marked in the autocompletion list.