If you are talking about buying/selling of your bitcoin without any third party being envolved than yes sooner or later we will have working decentralized trading platform where we can trade our coins without trusting any exchanges or going through heavy verification procedure they have.
Now I like this plan so will it come before or after the LN is released in 6-9 months time and
how will the BTC development team get a bung back from such a fantastic plan that should had
been included from day one.
Very hypercritical this is but it will never happen if you ask me