God, I hope so! It would take me on a trip through nostalgia alley... watching it on TV, unless in the correct atmosphere, just doesn't. Although, what will for sure is all of the marketing for one. I loved that stuff, the trailers, the website with the games including the 3D patty wagon, exploring Bikini Bottom, which was later hacked by a SpongeBob fan... I miss all that stuff. I know it's cheesy, but... I love it. I want it again. And I hope it's like the Simpsons Movie, where they get all of the original writers plus the creator to write the movie... that would be FANTASTIC.
Although, I must add that I actually do want it to continue off of the first one, unlike others in this thread. I remember being... 8 or 9 or whatever and when "Fear of a Krabby Patty" and all of the other Season 4 episodes premiered, I was really disappointed that there was no KK2, no SpongeBob manager, though I was glad Plankton wasn't in jail, because his storylines are great. I would like to see Plankton get outta jail, and just see how everything plays off of the first one. It seems like there could be a great story afterwards, but the producers felt it was a good place to end the series (but Nick didn't).
And I hope they don't do another break-the-4th-wall thing like the Pirates at the movie theater thing. It was unfunny and forced.