Won't New Game+ be TOO easy?

[Goldenboko]

Yes, New Game Plus will most likely be too easy. That is to speed your way to different parts of the game so that you can fight Lavos and get different endings. There's still two challenging bits, however: Spekkio, and Lavos in the Ocean Palace.

Basically, but depending on how much trainning you do isn't possible that The Black Omen will still be difficult?
I too am about to beat the game, I chose to do the sidequests while they are still a challenge though.