This week's release lists in Japanese magazine Famitsu may suggest that a handful of 3DS titles by Hudson have been cancelled.
According to Andriasang, reports from Japan suggest that at least three games for the 3DS are no longer in the list, possibly due to the acquisition of Hudson by Konami. These are: Omega Five, Bonk and Bomberman 3DS. Deca Sporta 4 may also be in the firing line, alongside an undisclosed "action game" for DS.
It's uncertain whether these are just absent or completely canned.
With Konami gaining full subsidiary rights from next month, these titles might make a re-appearance sometime down the line, at the very least Bomberman 3DS.