Sorry for the delay in the answer. If your license expires you won’t be able to use most CodeMix features, including Content Assist in CodeMix Editors. That being said, CodeMix offers much more than just JavaScript Content Assist. Take a look here if you want to know more. Also I suggest contacting us tomorrow via live chat if you have other concerns, I’m pretty sure we can help you finding out more cool stuff you can do with CodeMix in your regular development.
Cheers!
Aaron Lara