Steven Spielberg confirms fourth trip to Jurassic Park

It seems that after word leaked recently about a fourth trip to Jurassic Park it was only a matter of time before we heard from Steven Spielberg himself.
At his first ever appearance as Comic-Con, Spielberg was asked directly about the prospect during the panel for Tintin “We have a story, I can happily announce. We have a writer who is writing the treatment and hopefully we are going to make Jurassic Park IV in all of your foreseeable futures – all of our foreseeable futures – hopefully, in the next two or three years.”
The announcement was met with cheers and applause from Hall H, however Spielberg didn't go into detail about the story or who is writing it.
Sources claim that I Am Legend scribe Mark Protosevich is helping develop the idea for the fourth adventure.