[2020] Where are the 10 more new maps at release as the devs said?

I played in beta and people got bored after playing for 3 hours because there were only a few maps in play, then players asked on Steam forum that will there be more maps? The developers replied the thread and said there will be 10 more new maps added at release, but there isn't right now, WTF?

Was it a trick to convince people to pre-purchase the game? There are NO new maps added, it's still the same maps we've played in beta.

I would like to hear the explaination from a developer please, thanks in advance.