Did you make a wrong word? Do you mean "以后你陪我吗“ ,if you mean for this, that says" will you be with me to do something".

It depends a little bit on the situations...... "Will you be with / company me in the future / from now on ??

This is a wrong word, it should be ”以后你陪我吗？“，that means "can you stay with me later?"