The issue of rejoin has never gone away. The remainer, alliances through the U.K. and Europe morphed into rejoin alliances when Brexit happened.
I'm a member of the alliances beavering quietly in the background. It is far more complex than just putting rejoin on the labour manifesto.
Much has been done and will continue to be until we get the 2nd referendum we should have had in 2019. That's another story as to why we didn't, I'll happily share if anyone wants to hear it.
We can rejoin the single market BTW without a referendum. Would the E U have us back? Yes, under certain conditions. Labour will rebuild towards the calling of the 2nd referendum, which won't happen in the first Labour term.
Yes, there is a plan. The issue hasn't gone away and won't.
The only reason a section of Tories wanted it was for the deep pockets. The others, like Boris, saw it as a career move that went badly wrong. He didn't want Brexit. There is enough proof of that.
Below is w brief listing of the alliances
1/ If anyone wants to know more Google for your area, "Your area I.E Leeds for Europe"
2/ VOLT U.K., which is the Pan E.U. political movement now in the U.K. to help bring people who vote different parties to come together to work on this with the same aim
3/ European Movement U.K. was set up by people like Ken Clark, Andrew Adonis, Michael Adonis, and more after brexit to work together with the alliances
4/ "E U citizenship is a permanent individual status." This is now with the upper ECHR as the removal of individual citizenship is a breach of article one.
The U.K. government did not have the right to remove E U individual citizenship of those born before we exited.
All these and more are available to find on Google