This is good news to my ears. According to Dark Horizons Disney's Head of Production, Oren Aviv states:
"We're going to shoot 'Pirates 4' in April and May of next year. We are going to release it hopefully in 2011 is the plan" said Aviv who adds that though this is only one movie, if successful it will "hopefully be the first of another trilogy"
"He also expects the tone to be much smaller next time around - "We can't get bigger... I want to kind of reboot the whole thing and bring it down to its core, its essence, just characters."
I like the idea of a "reboot" because it will start a whole new trilogy with new characters and adventures. I believe its going to be great as long as they have a good script and director.