I have flights booked EWR-LIM in June 2019. Fingers crossed this gets the full Polaris treatment by then - if that happens I'm assuming there would be no issues accessing things like the EWR Polaris lounge, even if I bought under the current status? One of the search tools I used called it Polaris Business, but of course I can't find that now.
I'm an Air Canada flyer... I've never flown on a 757-200, and am looking forward to seeing how they've put lie flat seats in a narrowbody. Our YYZ-LIM direct flights are horrific in comparison.