You could tell us some of your ideas such as:
I would like to see a haunted/creepy map with scary looking gnomes.
or
A lovely cute cupcakey sweet feeling map, maybe mid will have some cherry trees, islands will have gingerbread houses etc.
You know, just to get the ideas rolling and debates on what players would like to see most (not just for skywars but other game modes too)
instead of asking for more maps. Builders could get ideas from this too.