I was there for the WEC Prologue (set-up day & 2 test days), ELMS prologue (got seriously ill on day 2, didn't go trackside), testday for the Michelin Le Mans Cup (sat that one out too) and then the ELMS weekend started with set-up day & scrutineering on Thursday. Was a bit of an equivalent to Le Mans week including scrutineering. Did miss a bit the feel of the previous WEC prologue though as there were no real team presentations. Not from Toyota (who had only 3 of their full season drivers at PR), nothing at BMW (first "official" European roll-out of the M8, and even less from privateer teams (BR1, Manor/Ginetta, ...).
Work on the fences started already last year when the ELMS ran at Paul Ricard, the new bridge over the Mistral straight was also under construction then.
I guess there's 2 places where you really want to be with F1: either at the grandstand at the back of T4/T5, watching cars through T2 all the way up to the Mistral straight or at the cheap seats at Signes with the opposite view (Mistral straight, chicane and down to the long hairpin). For us it's just another track ruined by F1: new fences take away a some good photo spots and temporary grandstands is not what you're looking for as a background.
Don't know anything about extra entrances. Guess they'll make one which will be accessible through the industrial park in Signes and one coming down from Gemenos ?
What I do know is that getting in and out of that track will be miserable all weekend long with F1. There's basically one main road giving access to the track, no additional entrances will change that. Good luck on those heading to PR in June, I'd got with a helicopter. As for the ownership of the track: it's still Bernie's (hence why they got back to PR instead of Magny Cours).
