Actually, "Jurassic World" began pre-production as way back as 2013, so I think the LBT staff saw it was happening and expected it to be popular. I mean, the sequels first came out after "Jurassic Park" was released and became popular; I think this is the same case here.
I'm not so sure about that. The first Jurassic Park movie came out in June 1993 while the second Land Before Time movie came out in December 1994. I am pretty sure that it would take longer than a year and a few months to storyboard, animate/film, and release a movie, even if it was direct to video. You could argue that since they are by the same company, they got the idea during production (well before the release of JP) to make another LBT film. But this is just speculation.
I think that was what I meant...
Hopefully this movie gets a lot of positive reviews.