We have received reply from Electrum author. Plugin won't be included in wallet by default. Author believes it would create a law risk to add mixer into wallet. Our hook was merged so our plugin will work with new version, but it will need to be installed separately.
We have published an article at r/Bitcoin about how to use ChipMixer to avoid upcoming "declare cryptocurrencies" US law:
https://www.reddit.com/r/Bitcoin/comments/6jzc41/easy_way_to_avoid_upcoming_us_declare_btc_law/Good thinking! Having mixing in your wallet will definetly make it a bit risky and that might cause your product to get banned, it's a good idea but unfortunately I didn't work out the way you wanted it to. At least the plugin is a bit of a compromise.
Read the article and it seems to be well written, should definelty attract some attention to your service.
I think that the rate your going CM you have a real chance of becoming the most popular mixing service, especially with all these features. It really differentiaties you guys from just being average, to being excellent. Good luck in the future chipmixer!