https://www.tvinsider.com/102987/peter-lenkov-on-the-prospects-of-a-macgyver-and-hawaii-five-0-crossover/
The veteran producer says that the two shows live in the same universe, so a crossover might happen.
peter lenkovprospectsmacgyverhawaii
https://www.thewrap.com/macgyver-ep-peter-lenkov-on-chemistry-between-lucas-till-george-eads-lightning-in-a-bottle/
"They've become such good friends, I think Lucas is sleeping on George's couch most nights now," Lenkov tells TheWrap
peter lenkovlucas tillmacgyverepchemistry