In the first X-23 limited series, one of the scientists states that they're going to be putting Laura into mass production, although the laboratory gets shut down before then.
In the Messiah War crossover, future-Deadpool mentions that he "Liked X-34 better," or somesuch.
One of the X-Force covers featured the team fighting a host of X-23 clones.
Meanwhile, in other Kyle and Yost work, there are entire rows of Wolverine clones in the Hulk vs Wolverine movie. Then, in the far future in Wolverine and the X-Men, Wolverine is backed up by four Laura clones.
It seems like the idea of mass-producing X-23 is one that K+Y have been playing with and hinting at throughout their work, but does anyone else actually think that could end up being a somewhat viable idea or have a real place in the MU?
At the minute, is it even possible to create mutant clones like that, in light of M-Day?