Because there are so many, it seems redundant to get het up over each one individually.

Ivan Reitman has made the first laudable decision in the last two decades of his career in no longer directing Ghostbusters III:
http://twitchfilm.com/2014/03/ivan-reitman-will-not-direct-ghostbusters-3.html
It will still get made, through the sheer wide-eyed, vodka fuelled force of Canuck will of Dan Ackroyd. It will be shite.

Jurassic World's only on-screen connection to the first film will be the scientist BD Wong played for about 2min 30sec, but does have Chris Pratt and Bryce Dallas Howard who I like a lot:
http://www.theguardian.com/film/2014/mar/19/jurassic-world-no-jeff-goldblum-laura-dern-sam-neill