I recently saw the new rendering of the overhead lines or I stupidly assumed it on the LGV route I thought it was a TSW3/4 feature only? on other routes from TSW2 and earlier I couldn't see it though.
They updated it for this route from the day 1 patch notes. But only this route so far. There are no plans to bring it to all routes since it's an individual route change
I was quite surprised to see the OHLE improved on the roadmap for the LGV route, prior to TSW4 release. I thought they’ll give us the correct OHLE on the classic line portion, which is under 1.5 Kv DC but if my memory is correct, they said it’s technically difficult to have 2 different types of catenary wires.