Two observations:
1. The pioneer brand is gradually being cheapened by making the rank available to more publishers. A lot of the current pioneers get off on being part of an exclusive club. They get a boost of self-esteem from accomplishing something other JWs cannot (even if a lot of them count tons of phantom hours to get there).
2. It's going to force a lot of elders and MS's to join the pioneer ranks. The number of people forming part of the "in" crowd will grow. As a consequence, the "out" group will be looked upon with a greater sense of disdain (spiritually weak) than before.