According to the VT ACT 250 database, Killington has filed an application to replace the North Ridge triple chair with a FG quad.
https://anrweb.vt.gov/ANR/vtANR/Act250SearchResults.aspx?Num=1R0062-1
https://anrweb.vt.gov/ANR/vtANR/Act250SearchResults.aspx?Num=1R0062-1