Add a checkbox to Special:Undelete to also restore the associated talk page, if one (used to) exist. This should restore all revisions of the associated talk page.
See T27471 for the same task about deletion.
T263209 is a request for the same feature in the API.
Removing project team tag as it is up to teams to decide what they plan to work on.
In T263211#6473633, @Aklapper wrote: Removing project team tag as it is up to teams to decide what they plan to work on.
Sorry, did not notice @daniel who had tagged T27471 is WMF.