I'm a frequent Fantasmic watcher and the first show is pretty unaffected, except for the longer availability of fastpasses from before the 60th, but the second show, especially during the week, has been quite empty in the blue and standby sections. Yellow FP is given out first and they go through all of them so that area remains full while blue does not run out and doesn't fill up. It's quite easy to get standing rail in blue section 15 minutes before the show whereas before they were gone as soon as FP sections opened up.