Short answer: I don't know.
The PIB has been clearing/leveling some land across the road from its Westhills Aggregates operation for several weeks now. RDOS staff have made some inquires to Westhills and the Band but so far we have not been told anything definitive.
Update 18 Mar 2015: According to the website for the Penticton Indian Band Development Corporation, the site is being cleared for a mobile home manufacturing plant:
PIBDC and the Lands Department are hosting the Information Meeting on a proposed manufactured home company on Wednesday March 18, 2015 at the Penticton Indian Band Hall....