I do not see the interest of duplicating the existing title already in the Translate: namespace into a separately translatable template (which will also recreate an entry for the translated item, so the item will be tripled !
Why don't you just test and use the existing Page title item which is directly in the Translations: namespace ?
Post the mass message with title (French version tested here):
[[m:Special:MyLanguage/Tech/News/2014/07|{{subst:#ifexist:Translations:Tech/News/2014/07/Page display title/fr|{{Translations:Tech/News/2014/07/Page display title/fr}}|Tech News: 2014-W07}}
Note that you could even create a template that uses TNT to get the translated title:
{{TNT|Translations:Tech/News/2014/07/Page display title}}
TNT by default uses the language detected in the content of the current page (independantly of user's preference) ; to use the user preferred/selectedlanguage (like Special:MyLanguage/) you can pass the parameter "uselang={{uselang}}", e.g.
{{TNT|Translations:Tech/News/2014/07/Page display title|uselang={{uselang}}}}