Any noteworthy 4*s being released in the near future?

UMU is in the very next banner ^w^

Eli caster for Halloween is a welfare one. Also the class based banners that will feature 4*s and 5*s on rateup

Well, there is more of them. Like Yagyu Munenori and lancelot, who's a ST Crit saber that compete each other. Both of them are monster of Art Servant.

Also there is raikou lancer and Asagami Fujino. Who's really good buster servant. And for the 3* that i can think of is jaguar man ...

Gorgon. A 4* avenger, in case you're not confident on rolling Jalter or Dantes.

I don't think even JP has a 4-star who's on the same level as Merlin, Waver or Hans for their respective lists. Most of the welfares are pretty good. Saber Liz is surprisingly strong. Passionlip for... um... reasons.