Hmm, have Mazda the £££££ to finance a LMP1 project?
What about Ford or BMW - neither have a global Motorsport programme - would they be interested?
As for Ferrari - F1 is we're they'll stay, but the Fiat group don't really do any other series. There was a time when we had Fiat, Lancia, Alfa-Romeo all involved in Sportscars, WRC, DTM, etc now nothing. They really should be in another series, and as the WEC is in the best health - one of their brands would be welcome.
Anyway, slightly off topic - but this weekend is the Nurburgring 24 Hours; my favourite race of the year; even above Le Mans.