Board Thread:Questions and Answers/@comment-5787678-20130307142610/@comment-76.233.128.108-20130313032214

Kylord3308 wrote: U can't change the future so there ll be a new ultimatrix

Because of Azmuth giving Ben the true Omnitrix during The Ultimate Enemy Part 2, the Ultimate Alien future is no longer canon. It is just another "what could happen".