Offering it, yes. Making it standard again, no.
I think you’re just as likely to turn off large numbers of people by only holding mass in a language most people can’t understand as you are to attract people [back] to the church.
Even as a largely (though not entirely) Conservative Catholic myself, I don’t think its the simplification of the liturgy that turned people off. Most Evangelical Protestant churches, after all, are far less “traditional” than the Catholic church, yet they routinely pack the pews - often multiple times per day, and not just for Sunday Services.
If you want to know what Catholics need to do to return people to the faith, start by looking at those churches which are already filled with the devout - and figure out how to apply, if not copy, the lessons. I would start with two key areas:
- Evangelicalism in the West: Pentecostals frequently knock on my door. Baptists preach on television. Non-denoms have successfully found a way to “market” the faith. and I see commercials for the Methodists. Yet, until the recent “Catholics Come Home” campaign, I was hard pressed to see any clear evidence that the RCC was attempting to attract new sheep. How about starting by touting our position as Christ’s own church - the only christian denomination which can make a clear, scriptural argument about being ordained directly by God?
- Better catering to the needs of the faithful: I’m not just talking mass times and confession here. One of the things that Protestant churches appear to do extremely well (And I can vouch for this from my experiences visiting the churches of my friends) is that they help people to deal with the issues facing them at various points in their lives. So there is a teen worship service, and a support group for couples, and daycare during service. Sure, Catholic churches often offer Catechism - but reaching beyond that, I’m not going to say we aren’t well behind our Protestant brethren.