Jesus spoke of John the Baptist referring to him as the last of the prophets. He was the last OT prophet. He was also referred to as a "friend of the bride." He will not be a part of the bride, but a friend of the bride. Those who come to Christ will be a part of the bride whom Christ will take for his own.There are scores of other passages of scripture that I could referrence to prove that all saints do not make up the escahatalogical bride of Revelation.
I fail to see any other distinguishing divisions between the believers from John the Baptist until the rapture. This is the bride, those who will be raptured, that Christ will come for.