i like either options, though how long do you think it will be on the new messaging system? A month (I doubt), 3 months, 6 months, a year? It doesn't't need to be an exact, just a range would be nice too, really anything other than "I have no idea" is a good answer.
Not much longer, as a large number of the existing options are already included in the new system. There is, however, a bit of fine-tuning and other things still required. Such as the search function and some more filtering options.