That may be their hope and intent, but I predict a massive failure. In another arena of my life I encounter (or used to encounter, I don't have as much time for it as I once had) many out-of-the-closet homosexuals and to be honest, they simply aren't looking to be affirmed in their lifestyle by a "mainstream" religion.
You are assuming that they wish for the church to continue in some form. From where I stand, failure would be a tremendous victory for those who would like to make the case that church and religion are outdated and irrelevent! How many Christians have been so disillusioned by the whole TEC mess that they are giving up regular church attendance all together? While this can never be an overt part of the agenda, it is clear that many in TEC hierarchy are socialists/secular humanists first and would be more than happy to close the church on their watch.