Apple will release a refreshed Pro-focused Mac Mini later this year.
As well as releasing a new budget laptop, Apple will release a new version of the Mac Mini, which was last updated four years ago. There haven't been many details available, however it is said the 2018 Mac Mini will be focused on pro users, with new processor and storage options that will make the new version more expensive than before.
Rumours from last year suggested Apple is working on a new Mac Mini, that won't be so 'mini anymore'. It could be less compact, but have more powerful components inside. It will support macOS Mojave, obviously.
Bloomberg is reporting that Apple will release these new Mac devices in October, after announcing their new iPhones, iPads and Watches at the September keynote.