Hi sumanah !
Several contributors in the French Wikisource are very interested by Scribunto extension and one, Rical have already written a module. Can fr.wikisource be one of the first wikis to use Scribunto extension ? We have talk about this idea on our Scriptorium (Wikisource's Village Pump) and most of people there are impatient to use it. If it happen we would be happy to share our experience about this extension in order to help other wikis to use it.