All we can really go off of is history, and that makes the answer to be "very unlikely."
The iMac and MacBook Pro lines have always received the most attention from Apple, whereas the Mac mini went so long without a refresh that many of us were wondering if the line had been discontinued. It was a delay in receiving updates for four years up until 2018 - and even then, the refresh at 2014 was seemingly a downgrade compared to the 2012 Mac mini!
Even aside from the release history, Apple are releasing their new Mac Pro this autumn. While the Mac mini and Mac Pro are arguably two very different machines targeted at two very different user groups, the expandability brought about by external GPUs has led some to call the Mac mini a "mini Mac Pro" - which is to say that there is more overlap between the user groups than might appear at first glance, and it's unlikely that Apple would do anything that would draw attention away from the Mac Pro's debut.
Granted, we could be surprised. Apple has made remarks in the past about returning focus to the Mac lines, and the shakeup in designers was possibly responsible for some of the delays that we saw in updating the Mac lines. I'd be thrilled if Apple updated their Macs a bit more often than they have in recent years, but I wouldn't expect it. Whether silent or not, if the next update to the Mac mini occurs in the next 2-3 years, I'd say Apple are largely on track with what they've been doing.