Yeah, he is surely known as one with series which ended abruptly, and always ranked low.Yeah, Even if Jump is a little cutthroat, it's big name means that you will be noticed. Cuz if you get serialized for the big names multiple times, your name becomes more known and people will expect your works.
Pretty Face: stopped due to health reasons
Mx0: low ranking
Kagami: low ranking
Not in Shonen Jump. Unless you meant Jump SQ, then he can join the likes of Kawashita Mizuki.And since Yasuhiro-sensei has gotten a lot of his works serialized, there's a high chance that he'll be in Jump again.