We are rapidly running out of names for Lutheran groups. I cannot remember exactly what LCMS is, but I know they are congregations from the ELCA. Some congregations within LCMS are completely out of ELCA. Others have a dual-membership. Apparently, WordAlone/LCMC had two main groups, charismatic and non-charismatic. The two factions have parted ways.
No one (except Ichabod) wanted to leave ELCA when it began in 1987. Now the exits are being stampeded. During the last 20 years, WELS and Missouri have done their best to identify with and work with ELCA. No wonder people are not rushing to join either WELS or Missouri.
One Lutheran name has already been recycled. The Augustana Synod was a group of Swedish-American Lutheran churches. They chose their name to distinguish them from the generic, non-confessional Lutherans of the time. My wife, my mother, and I all graduated from Augustana College. Conrad Bergendoff wrote a book about the ministers of the denomination, called The Augustana Ministerium. Now a group within the LCMS has called itself The Augustana Ministerium.