If you pre-ordered the digital version of Mega Man Zero/ZX Legacy Collection on PlayStation 4 before the game was delayed to February 25th, you might need to go back and pre-order again. The following message is being sent out to some PS4 users:
"Due to the recent change in release date for Mega Man Zero/ZX Legacy Collection, your pre-order has been cancelled.
You have been refunded back to your original payment source. If your original payment source
was unavailable, we refunded the purchase amount to your PSN wallet."
So yeah, it's probably a good idea to check and see if your initial pre-order is still valid. Again, this only applies to the digital PlayStation 4 version.
Mega Man Zero/ZX Legacy Collection is due on February 25th, 2019.
Thanks for the tip, SonyOfLaststation!