Should get some input from Henning on interaction and design.

I am not sure we want this to be in the core. This seems like one of those power-user features that are best done in gadgets. However we should provide better support for these in the core of Wikibase.

Other opinions?

Lowest and Minor if we're undecided.

In the core as a gadget probably not. In the core as a feature - yeah but likely to be obsoleted by plain merging?

Copying from https://www.wikidata.org/wiki/Wikidata:Project_chat/Archive/2014/10#Move_sitelink.3F (maybe I'm not the only that noticed this comment only right now):

"On Bugzilla (where I cannot edit, as I am not registered there), John F. Lewis replied to Bene's proposal with 'In the core as a feature - yeah but likely to be obsoleted by plain merging?' I do not know what 'plain merging' is, but between the 'merge' tool and the 'move' tool there is a big difference. With merge, you move all information (all sitelinks, properties, labels etc.) to another item. With the move tool, you can move 1 sitelink if it is just placed on the wrong item, leaving the rest of the item as it is. Bever (talk) 06:08, 25 October 2014 (UTC)"

Would love to have this in the core, so we have a better way to track where they (mostly new editors) left the sitelinks.