They won't have sentience because it will be antithetical to capitalist business ideology. There's no good business value proposition for having the AI daydream like humans do, or 'sleep' while 'on', or have inspirational thought that might be seen as 'wrong' or useless. If that behavior ever manifests, it will probably be stamped out in a future release.
You can't justify to the board the wasted money to have the android dream.