My guess is that the individual who posted, who appears to be French, probably doesn't speak English and simply ran what he wanted to say through Babelfish. The "under three versions different" line speaks to that effect. I assume "shortly confirmed" is probably akin to "nearly" or "almost" confirmed. Not to mention the phrase "The Mans" instead of "Le Mans", since the "le" was obviously translated to "the" (mistakenly of course, since computers are notoriously stupid).
Personally, I'll wait until an official announcement from PD comes out, or else I see it in the game.
Also bear in mind that the number of 65+ tracks may indicate variants of existing tracks.. Autumn Ring Mini, Grand Valley East, Route 5 Wet, that sort of thing.. which would probably also mean that IF there are three different Le Mans courses, they would be counted as three distinct tracks. So the number is probably closer to the 50 we knew from TGS, and that the "extra" tracks are probably just variants of other tracks.