Wanted to give a list of events that you can expect to see as a player:

For Antigonid players, related to the life of Demetrios:
His capture of Cilicia from Plistarchus, as recorded by Plutarch
An event chain related to the Antipatrid house, assassination attempts and the eventual Antigonid takeover of Macedonia
Ptolemy's seize of Cyprus and Phoenicia
A concerted effort by Ptolemy and Lysimachos to remove Demetrios from Anatolia
An Athenian rebellion

Various Marriages:
Pyrrhos and Lanassa (and their divorce)
Demetrios and Lanassa
Lysimachus and Arsinoe
Seleukos and Stratonike
Antiochos and Stratonike

An event chain connecting the other 3 diadochi:
The elevation of Ptolemy Philadelphos to the Egyptian throne
The flight of Ptolemy Keraunos to Thrace
The execution of Agathokles by his father Lysimachos
The battle of Corupedium
The assassination of Seleukos

If you play any of these nations and don't see your event firing, please report the bug in the bug report discussion!
If you enjoyed the events or wish they were played out differently, feel free to leave a comment below!