You'll know when it's going to happen... you'll know.
People are just boarding the hype train now and getting themselves comfortable, there's tea and biscuits, its all quite lovely.
Once MadMole releases a gameplay video you'll see the hype train leave the station. Speculation becomes rife and conversation become inane. Excitement builds as videos are released and certain features are confirmed or denied. The people spamming drivel on the forum get throughly flustered, the conversation becomes increasingly aggresive as people have disagreements over whatever features have included or excluded.
Eventually a rough release date will be announced and the forum tips over the edge into full-on hyperactive toddler mode. As the release date approaches the posts get faster and more nonsensical. The number of people refreshing the forum reaches a feverish state, traditionally crashing the website and sending everyone over to the discord feed for a while. Some of us still remember MadMole's various body parts chatting in IRC for a while
The alpha is then released, there are various posts of "downloading now!" and a relative calm settles over everything...
Then the bug reports start coming in...