Remind me again, isn't the general election open voting?
1) The general election isn't a process in which there are state-by-state elections happening throughout the course of several months in which some candidates drop out as other candidates win and all the consequential dynamics of that.
2) If democrats cross over to vote in GOP primaries, will they vote GOP in the general election? That remains to be seen, but I think I have as much reason to believe they won't as Trump's loyal supporters have that they will.