Litanies

I believe Fr. Bouyer supported the idea of adding litanies into the Roman rite liturgy. Where would be the appropriate places for this to be done? After the Kyrie? Or should the Kyrie be expanded? Replaced? (But then what would happen to that part of the treasury of the Kyriale?) One can keep the Kyrie, but it may have to be sung more quickly, so that one can proceed with the litany?

The intercessory prayers of the OF of the Roman rite should definitely be reformed and unchangeable as much as possible. (What should the proper response in Latin be?) Some have argued that the Roman canon itself has intercessory prayers and so additional intercessory prayers are unnecessary. But, it seems that this is true of the anaphora of the Liturgy of St. John Chrysostom, and yet having two separate sets of petitions before the anaphora is not deemed to be repetitive.