Hi Jordan,
Thanks for reaching out. I’d be happy to help with your question.
Our Event Aggregator product allows you to import complete events from other websites that are using the Events Calendar, including the featured image. I also has import options for common calendar formats like ical, .ics etc. But many of our customers use it to pull their events in to one site from subsites on a Multisite install.
You should specifically check out the “OTHER URLS (BETA)” option at the bottom of that product page.
Hope that helps! Please let me know if you have any additional questions about this.
Thanks,
Sky