I don’t see that happening currently, but that could change with enough votes in the Feedback site that @bojan gave you in his last reply.
However, you don’t need to wait for us or even use the default MainWP layout. As an open-source plugin, you can see the old code in Github and add it back through an Extension. If you would like more information on coding for MainWP to be your own, please check https://mainwp.dev/