Capcom announced the following

 

As many of you are aware, Mega Man Zero/ZX Legacy Collection was initially planned for release on January 21, 2020. However, the team made the tough decision to move the game’s release date back in order to bring you the best possible collection of these cherished classics and deliver a game that will live up to your expectations.

To paraphrase Mr. Tsuchiya’s words, the team greatly appreciates your patience and support and is fully committed to offering the best game possible in late February. We know this is disappointing for those of you who have been excited about this collection since the day we first announced it, and we appreciate your patience.

 

 

The delay is not too bad, and if its needed, then it is better than rushing the game out.