According to AllEars:
The main pool at the Meadow Trading Post is being enhanced with a themed water slide, hot tub, and children’s play area. No exact refurbishment dates have been released as of now.
The last time I was there in June they were doing a lot of work to the grounds. Adding walkways and new lighting. I will be there on the 28th and will try to remember to report back on any new pool additions or just any info a CM might be able to provide.