No one knows how low the scores will go my friend. The best advice I can give you is do everything in your power to increase your score and give yourself a fighting chance. Improving your language is perhaps the fastest way to increase your score, if you haven't maxed out already.
All the best
Since there's not much to improve on my ielts score, would you suggest me to take up a French course? What should be the desired level to achieve good additional points for CRS? I'm not sure about points to be gained from French. As you can understand I know zilch about the French language. My point is 392 at the moment.