There is no known official inormation except the “Coming” data on tesla’s Supercharger map.
Zoning discussed this recently:
There is a Loves truck stop already located nearby, that was a probable site. Loves has Superchargers at other locations already and Tesla needs semi truck parking / charging soon.
This new zoning request for electrical infrastructure improvements and rezoning for purchase by “an adjacent property” could be Loves buying the plot right next to I-88 (closer to the highway than current) and setting up power for Megachargers. No tesla was discussed (or other property buyer names).
I will update when there is new information. This is all very preliminary.