As one star falls, another must rise. Obviously Irene ruled the 3rd gen as visual. But on this new era Miyeon is taking the role she had now that the public is no longer as favorable to Irene, or as she now wants to be called Juhyun.
Miyeon has been getting the following:
1) increased brand rankings, entering the top 5
2) acting role in a webdrama
3) MC in a major music show program
4) considered a standard visual
I expect Miyeon's popularity to keep rising, she's already considered one of the top visuals of the 4th gen