they were supposed to run a 2-class formula in 2010 - there was non-stop complaining, fighting and confusion so it was cancelled, screwing over the 3 teams (hrt, virgin/marussia, team lotus/caterham) that signed up with the understanding of the new low-cost rules coming in.
the 2nd incarnation of f2 died in 2012, leaving gp2 as the main development series for f1. for a few years after ww2, f2 cars ran in f1 races, but as the economy got better so did the f1 cars, and they needed the track to themselves. multi-class races are fine in sports cars but bad news in open wheelers.
WEC is already has a lot going for it, without f1 pushing people away with their stupid crap. unfortunately, watching all (or any) of the 8 races is going to require some creative internetting.
prototype 1 is very progressive and fast as hell, i'd just like to see more entries. p2 seems to be a very well-sorted cost limited series. the GT classes are different every damn year, and i'd really like to see them stabilize around cars that are closer to production.