Honestly, not much else is actually known about what will be revealed, but that has not quelled the chatter of speculation. Alpine was known for making sports cars and successful racers that had Renault engines typically mounted at the rear. In 1973, they were bought out by their engine supplier.
It is suspected that a near-production version of the 2012 Alpine A110-50 concept will ultimately what will be shown. Several sources say that the car (due to go on sale in 2016) will be pegged as a Porsche Boxster or Audi TT rival, emphasising lightness and agility to make the most of its purported mid-mounted Megane RS-derived 270hp 2.0-litre turbocharged petrol engine.
That philosophy does put it in a similar box as the Alfa Romeo 4C, which also uses a relatively low displacement turbocharged motor and has rather compact dimensions.
We will have to wait another three days (from this time of publishing) to know, conclusively, what Renault has up its sleeve. If you are so inclined, you can keep watch of the countdown on the Alpine website here.