WordPress 3.9 includes TinyMCE 4.0.* which is quite different internally than versions of TinyMCE in past editions of WordPress. This includes the TinyMCE APIs as well. Unless the plugin authors have rewritten the 9 plugins you use to be compatible with WordPress 3.9 and TinyMCE 4.0.* they probably won't work. The best thing you can do at this point is to contact the authors of these plugins to see if they're aware of this. If the plugin is still under development and hasn't been abandoned, the author should already be working on an updated version.
It's very important that users do this, especially users that don't regularly "police" their plugins and themes to see if they actually are still under development (I don't mean you specifically) as well as alerting plugin and theme authors who may not be aware of the changes in WordPress 3.9. They should but sometimes there's the exception.