I believe the plan re-establishes the same traffic pattern as in the old days. Unless you’re asking if you’ll be able to walk underneath SE which is no.
So we ran into your concern 2 weeks ago, where we followed other rope droppers to the right of where most people were headed for TT and FEA to the far left. We ran into the construction wall and ended up backtracking and going to the right with the Rat rope droppers (we already had a G+ for Rat). I recall thinking that a sign that stated dead end or to that effect would have been helpful.What I'm hoping is that you will be able to go to the right just past Spaceship Earth, instead of swinging way around to by the Seas with Nemo.