Mrs. Cruise wants to devote all of her attention to Suri.
Back in July, Life & Style declared that baby no. 2 was "on the way" for Katie and her husband, Tom Cruise, and cited the fact that Katie was seen, eating a lot of ice cream and rubbing her prosthetic belly on the set of her new movie, The Kennedys. (It seems more likely, in retrospect, that she was eating ice cream because the weather was hot and rubbing her belly because of her role, playing a pregnant Jackie O.) Katie Holmes' Scientology Pregnancy Preparation
In the October issue of Marie Claire, however, the actress cleared up all of the rumors and declared that she and Tom weren’t ready to expand their family, yet:
"Maybe in a couple of years, but right now I want to make sure I'm really there for Suri," she said when asked about another child. Tom Cruise Pressuring Katie For Another Baby
"I'm the youngest in my family. My closest sister is five years older than me, and the next one is nine years ahead of me, so I was a bit of an only child, and I liked it! I liked having all of my mom's attention, and sometimes I think I still do." 7 Celebrity Wonder Moms
So it seems the world will have to wait a few more years before seeing another TomKitten. Hopefully, Katie won’t wait too long though, as having children that are far apart in age also means that they will be in different stages their whole lives and won’t really be able to relate to each other the way they would if they were only a couple of years apart.