Yes, I hope it will be better than Jaws! (Another great movie). Megalodon has always been a favourite Creature of mine, along with the Loch Ness Monster, I prefer the underwater ones to the land Creatures.
And yes, i've heard the new movie will focus more on the Aquatic Creatures, which makes it just as scary as the previous movies, as you never really know what monsters hide beneath the surface.
Still, i'm sure it won't disappoint, I have not been disappointed with the sequels so far, so lets wait and see.
I do believe there is something extraordinary under the Surface, it's just that we can't see it, I mean, the Ocean is so large, it would almost be ignorant to say that there wasn't a huge monster living deep below the surface somewhere.
I'm skeptical about the Loch Ness Monster, the story has been traveling around for so long that the poor creature might have died ages ago (if it did indeed exist), and Stories are always exaggerated over time, so who knows, but I still firmly believe that there will always be unknown creatures that live their lives away from Humans.
Animal Planet and Discovery Channel, best Two Channels I know of.
Jurassic Park IV has been in line to make it to the big screen again since 2002, however there has always been certain 'pushbacks' due to Spielberg not being happy with the written scripts. It should be heading into production by the start of 2014, (if it is not already) and this is simply a Logo to tease the new movie.
Note that the first movies main Dinosaur (the large one that enters the entrance building near the end of the movie) is featured on the main Logo for that particular movie. The same is done with the second movie, where a similar Dinosaur is transported to the Docks of San Diego, therefore making its mark on the Logo. Then there is the Dinosaur from the Third movie (the largest Dino in that movie) which features on the Logo.
I presume this Logo is just here to tease the movie, and not to give away what possible 'new' Dino will be in the movie, then again, that same Dino from the first movie could very possibly make a return, due to the Fourth movie being in the same location as the First movie. I'm sure in time they will reveal a new Logo, but this is just pure speculation for now.