Sources within Disney have indicated that Stitch’s Great Escape is now permanently closed. The attraction last operated on January 6th of this year and is currently reported to be partially dismantled, with multiple Animatronic figures having been dismantled for parts.
A Wreck-It Ralph attraction has been rumored to take over this space.
Please note that this has not yet been confirmed by Disney and is, therefore, a rumor.
Thanks to The Orlando Sentinel and WDWMagic for the images.