Please no more Eureka!

[Lambdafish]

and they choosed to discard the niche high-end boss fight nobody have a problem with.

You do realise that the lack up ultimate has nothing to do with resources or Eureka at all right? Yoshi P said at a Q+A that the reason was that they thought people wouldn't want 3 ultimates due to the high difficulty and the pressure to complete too many trials. They underestimated the popularity of them, and the outcry for a third, and obtained that feedback too late to create one. They said this will be addressed in 5.0.

If anything, the presence of BLU means we got more content in 4.0 than we ever have before. Why would you complain that a piece of content is niche when so much else has been added, or better yet, instead of making Eureka complaints, why not tell the Devs what you do want, that worked for Viera and BLU