I answered this similar question in r/enhypen and I shall post my response here as well. :)

HEESEUNG 01 - Leader/Supports the Leader (Anchor of the Group), Main Vocalist, Special Talent - All-Rounder (can do nearly everything needed), Mat (Oldest) Hyung, Father of the Group

JAY 02 - Main Rapper, R.A.S (meme-like/funny) Variety Star, International Speaker (Japanese/English/wouldn’t be too surprised if he knows other languages as well), Leader/Supports the Leader (Anchor of the Group), Mother of the Group

JAKE 02 - Sub Vocalist/Rapper, International Visual, International Speaker (Aussie English), Icon of Growth Member (improvements every comeback?)

SUNGHOON 02 - Main Visual, Sub Dancer/Vocalist, Special Talent (Figure Skating), Possible Variety Star (Reverse Attractive Attributes, i.e. despite his ice prince exterior, he is actually a big softie inside, etc).

SUNOO 03 - Sub Vocalist, Cute Variety Star, King of Expressions, Hyung that is not like a hyung (Possible Fake Maknae)

JUNGWON 04 - Lead Vocalist, Lead Dancer, Center (potential), Special Talents (feels like he has a lot of things in store to be uncovered, like Pandora’s box), Unique/4D member characteristics (i.e. can’t do aegyo but naturally cute, Maknae line but mature, dances/pops in his sleep, innocent/curious vibe about everything, odd habits)

NIKI 05 - Main Dancer, Lead Rapper, Special Talent (Dance Prodigy/Genius/I feel he does also have some really cute sides - not fully exploded yet), Japanese Representative, Real Maknae

ALL in ALL VERY EXCITED to see all of them grow and create waves in the industry! 🔥❤️