Do you mean for material scripts, etc?
I think the current scripting is already fine, as it is rather simple and material files can be edited by artists without actual scripting experience. And Ogre already is pretty demanding on artists, as there is no one official toolkit with official support.
The current scripts are more definition files (like a config xml file) than they are really scripting something (like in Python or Lua).
I mean, I'm a huge fan of scripting (and LuaJIT is incredibly fast, btw.), but switching from a definition-style script to an actual scripting script may make the system more flexible, but also harder to use for non-programmers.
Which would require even better toolkits for material export. Which the Ogre team can't really offer (not enough manpower). It would also force third party tool (like OgreMax) developers to implement the chosen scripting language.
Of course, we could re-write the material script files to use Lua (
like this), but that would mean switching just for the sake of using Lua (or Python or whatever).
So, yeah, I'm not fully convinced of that idea