We previously reported that http://www.1up.com/do/newsStory?cId=3156333. However, today Konami went on record to deny these cancellations, saying the printed release listings in Japanese magazines, Famitsu and Dengeki, are actually errors and the games are still going ahead as planned. None of the games currently have release dates, however.
Since the mistake happened in two magazines, we can only presume that someone at Konami provided the wrong information to the publishers. It should be noted that this does not apply to http://www.1up.com/do/gameOverview?cId=3150574, however, which was officially canceled last week. We're just relieved that a new Gradius is still in the works.
Thanks to http://feeds.feedburner.com/~r/1up/ALLPS3/content/~3/74303927/newsStory for sharing the news with us!