[edited content]

Please note that this "Rumoured Lineup" was first published BEFORE the official profiles of the participants confirmed to be joining the show were released, and most of the trainees on this list did not actually end up joining the show (though there are still some who did ^^). If you want to know the confirmed 101 trainees that joined the show, head on to their official profiles (numbered 001-101) on this same book. Thank you!

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As the show's airing fast approaches, fans are speculating these trainees/former members of other idol groups/those who joined other survival shows in the past being in the sea of male trainees joining Produce 101 Season 2! Below are some of the rumoured trainees that we may (or may not) see in the upcoming show (and their photos as well). Please note that these are just RUMOURS and by all means UNOFFICIAL. [cr. Allkpop]

1. Samuel Kim (from 1Punch, former SEVENTEEN member, former Pledis trainee) [Confirmed to be joining the show; to view his profile, head on to "058. Kim Samuel ☆ Brave Ent." part of this book]

2. Lee Dae Yeol (from Woolim Entertainment, INFINITE Sungyeol's younger brother) [Did not end up participating in the show]

3. Jung Jin Young (from KQ Produce, former YG Entertainment trainee, has previously participated in 'Mix and Match') [Did not end up participating in the show]

4. Jang Moon Bok (has previously participated in 'SuperStar K', is good friends with V from BTS) [Confirmed to be joining the show; to view his profile, head on to "015. Jang Moon Bok ☆ ONO" part of this book]

5. Noh Ji Hoon (from CUBE Entertainment) [Did not end up participating in the show]

6. Lim Joon Hyuk (former JYP trainee, former member of DAY6) [Did not end up participating in the show]

7. Kim Moon Kyu (former SM Entertainment trainee, HOTSHOT member) [Did not end up participating in the show, but other members of his group HOTSHOT did join - Ha Sung Woon and Noh Tae Hyun - under the company label "Ardor & Able"]

8. Noh Yoon Ho (from KQ Produce) [Did not end up participating in the show]

9. Seok Dae Hwan (from KQ Produce) [Did not end up participating in the show]

10. Park Yong Joo (has previously participated in 'Super Idol') [Did not end up participating in the show]